The Snap Sampler is a passive, no-purge groundwater sampling device that collects representative samples without purging or transferring the sample at the wellhead. It works by deploying sample bottles in an open position in the well, then using a simple mechanical trigger to close the bottles in situ after a residence time of 1-2 weeks or longer. Comparison data shows the Snap Sampler produces results that highly correlate with low-flow purging and has advantages in terms of cost savings, improved data quality and consistency, health and safety benefits, and generating no purge water waste.
Recently, a new technique was introduced the allows the automated supercritical extraction and SFC analysis of samples with minimal sample preparation and handling requirements to save analyst time and sample preparation expenses. This presentation demonstrates how automated SFE-SFC can be a quick way to screen up to 48 soil samples for explosives in a variety of soil types with minimal sample prep. For more information, go to http://www.ssi.shimadzu.com/industry/industrypage.cfm?market_id=4. Thanks for viewing.
The slickwater stimulation of unconventional gas and oil shale plays creates flowback water with a composition that is unique to particular shale formations. Characteristically, these fluids contain high concentrations of salts (e.g., chloride, bromide) which are routinely determined using ion chromatography. This analysis typically requires sample preparation, including manual dilution, which can significantly increase the cost of analysis. Results presented will show highly reproducible determination of anions and cations from Marcellus Shale flowback water using inline conductivity to identify high salt samples and then automatically diluting them prior to injection, saving time and column life.
Recently, a new technique was introduced the allows the automated supercritical extraction and SFC analysis of samples with minimal sample preparation and handling requirements to save analyst time and sample preparation expenses. This presentation demonstrates how automated SFE-SFC can be a quick way to screen up to 48 soil samples for explosives in a variety of soil types with minimal sample prep. For more information, go to http://www.ssi.shimadzu.com/industry/industrypage.cfm?market_id=4. Thanks for viewing.
The slickwater stimulation of unconventional gas and oil shale plays creates flowback water with a composition that is unique to particular shale formations. Characteristically, these fluids contain high concentrations of salts (e.g., chloride, bromide) which are routinely determined using ion chromatography. This analysis typically requires sample preparation, including manual dilution, which can significantly increase the cost of analysis. Results presented will show highly reproducible determination of anions and cations from Marcellus Shale flowback water using inline conductivity to identify high salt samples and then automatically diluting them prior to injection, saving time and column life.
Compact Hydrogen Peroxide Sensor for Sterilization Cycle MonitoringClinton Smith
We demonstrate a compact hydrogen peroxide (H2O2) sensor capable of measuring as little as 32 parts-per-billion (ppb) concentration H2O2. This sensor was also shown to measure as little as 9 ppb concentration methane. The technology works by measuring the mid-Infrared absorption of the trace-gas analyte, which results in a virtually interference free signal.
Coal Tar DNAPL Mass Removal - Monterey Conference, Neale Misquitta, Key Envir...Neale Misquitta
Presentation from paper presented at the Monterey Batelle Conference Regarding the authors site specific experiences for the removal of DNAPL at coal tar and creosote wood treating sites. Approximately 40,000 gallons almost 15 tons, of prouct is removed annually using a variety of reovery techniques.
Cleaning validation is necessary to establish the quality and safety of pharmaceutical drug products. In cleaning validation protocols, direct sampling is performed with swabs, which are sticks with textiles at one end. The sample on the swab after swabbing the surface of equipment is analyzed with a TOC analyzer and HPLC. Recently, HPLC has been more preferable because of the growing need for the individual analysis of products. Before the HPLC analysis, manual processes such as a sample extraction and a sample condensation are required. Such manual processes may affect to the quality of results. Thus, we evaluated the application of a novel on-line supercritical fluid extraction/chromatography system for the cleaning validation.
For more information, go to ssi.shimadzu.com and follow us on Twitter @ShimdzuSSI
Britt Session Vii Tuesday (Variability) Small FileSandyBritt
This presentation was first given at the North American Field Conference and Exposition in Tampa in 2008. It describes benefits to long term groundwater trend monitoring using the a consistent sampling approach--the Snap Sampler.
This presentation was first given at the 2008 Battelle conference in Monterey. It describes a multilevel sampling approach in traditional monitoring wells using in-well baffles to isolate zones with a well.
Academic review of IEEE invited paper on printing large area electronics. If I was pursuing a PhD this would probably be end up being my thesis topic as I have lots of related industrial experience to contribute to this field.
IHR STOCKHOLM 28 nov 2014 - Robert Dysell från ACNE & PLANNERFEDRobert Dysell
Gästföreläsning på kursen konsumentbeteende på IHR, Stockholms Universitet. Med inspiration från Byron Sharp, Les Binet och Peter Fields och erfarenheter från byråvärlden presenteras tankar och svar på frågor inom marknadsföring.
Compact Hydrogen Peroxide Sensor for Sterilization Cycle MonitoringClinton Smith
We demonstrate a compact hydrogen peroxide (H2O2) sensor capable of measuring as little as 32 parts-per-billion (ppb) concentration H2O2. This sensor was also shown to measure as little as 9 ppb concentration methane. The technology works by measuring the mid-Infrared absorption of the trace-gas analyte, which results in a virtually interference free signal.
Coal Tar DNAPL Mass Removal - Monterey Conference, Neale Misquitta, Key Envir...Neale Misquitta
Presentation from paper presented at the Monterey Batelle Conference Regarding the authors site specific experiences for the removal of DNAPL at coal tar and creosote wood treating sites. Approximately 40,000 gallons almost 15 tons, of prouct is removed annually using a variety of reovery techniques.
Cleaning validation is necessary to establish the quality and safety of pharmaceutical drug products. In cleaning validation protocols, direct sampling is performed with swabs, which are sticks with textiles at one end. The sample on the swab after swabbing the surface of equipment is analyzed with a TOC analyzer and HPLC. Recently, HPLC has been more preferable because of the growing need for the individual analysis of products. Before the HPLC analysis, manual processes such as a sample extraction and a sample condensation are required. Such manual processes may affect to the quality of results. Thus, we evaluated the application of a novel on-line supercritical fluid extraction/chromatography system for the cleaning validation.
For more information, go to ssi.shimadzu.com and follow us on Twitter @ShimdzuSSI
Britt Session Vii Tuesday (Variability) Small FileSandyBritt
This presentation was first given at the North American Field Conference and Exposition in Tampa in 2008. It describes benefits to long term groundwater trend monitoring using the a consistent sampling approach--the Snap Sampler.
This presentation was first given at the 2008 Battelle conference in Monterey. It describes a multilevel sampling approach in traditional monitoring wells using in-well baffles to isolate zones with a well.
Academic review of IEEE invited paper on printing large area electronics. If I was pursuing a PhD this would probably be end up being my thesis topic as I have lots of related industrial experience to contribute to this field.
IHR STOCKHOLM 28 nov 2014 - Robert Dysell från ACNE & PLANNERFEDRobert Dysell
Gästföreläsning på kursen konsumentbeteende på IHR, Stockholms Universitet. Med inspiration från Byron Sharp, Les Binet och Peter Fields och erfarenheter från byråvärlden presenteras tankar och svar på frågor inom marknadsföring.
This presentation was given to Region 1 EPA. It illustrates flow, transport and mixing that can occur in monitoring wells in ambient conditions and during pumping.
This poster is an overview of the four main projects I worked on at my summer at Streck. This board was created as a summary for a all-employee showcase.
a simple multi-utility miniature device used as test tube to 3D cell culture ...guo jun chen
IMAPlate 5RC96 is patented and developed by NCL New Concept Lab GmbH in Switzerland. It is a multi-utility miniature analytical platform that is capable of MANUALLY performing up to 96 individual liquid transfer, analysis, reaction and assay simultaneously. The device is compatible with most 96-well plate readers for the measurement and spectral analysis. The IMAPlate 5RC96 can be used as 96-channel self-dosed manual pipette for tiny amount liquid transfer, as a 96-micro long path-length high sensitive cuvette array for UV-VIS-IR spectrum detection with a flexible sample volume of 1 - 25 ul and as a virtual 96-microwell plate for different assays. The IMAPlate has very broad applications in life sciences and diagnostics and fits for both manual operation and automated liquid handling workstation.
Many assays performed in multi-well plate can easily be adapted to the IMAPlate with increased sensitivity and cost saving, for example ELISA, cell adhesion assay, protein quantification and so on. Due to its unique feature, it can also be used for 3D cell culture to prepare micro-tissues and perform subsequent testing and measurement directed in the device. If needed, the micro-tissues or cells in the IMAPlate can easily be transferred to any 96-well plate and even can be spotted on microscope slide directly from the IMAPlate.
No single liquid chromatography (LC) detector delivers ideal results. Often with LC detectors one analyte responds more strongly than another, or may not respond at all. What is most desired is the ability to accurately measure a wide range of analytes with consistent response simultaneously.
Charged Aerosol detection (CAD) is a mass sensitive technique for determining levels of any non-volatile and many semi-volatile analytes after separation by liquid chromatography. This technique provides consistent analyte response independent of chemical characteristics and gives greater sensitivity over a wider dynamic range. An analytes response does not depend on optical properties, like with UV-vis absorbance, or the ability to ionize, as with mass spectrometry (MS). The presence of chromophoric groups, radiolabels, ionizable moieties, or chemical derivatization is needed for detection.
Presentation Outline for Expanding Your High Performance Liquid Chromatography and Ultra High Performance Liquid Chromatography Capabilities with Universal Detection-Shedding Light on Non-Chromophore Compounds:
• Introduction to Charged Aerosol Detection
• How Charged Aerosol Technology Works
• Comparison with Evaporative Light Scattering Detectors
(ELSD)
• Examples of Applications
• Inverse Gradient Solution for Uniform Response
Building your case for sustainable remediation using a high resolution approa...John Sohl
Understand why environmental cleanup costs skyrocket because of poor information and how to use high resolution information to restore sites in a more sustainable, less expensive approach.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
1. Passive, No-Purge, Sampling
Snap Sampler
with the
Know your sample
Trust your data
Mr. Sandy Britt, PG, CHG
ProHydro, Inc.
Sandy.Britt@ProHydroInc.com
1
www.SnapSampler.com
2. Snap Sampler
The is a passive,
Equilibrated Grab Sampler
• Deploy with bottles in an
open position.
• Sample after short or long
residence time in the well—
1-2 weeks or 3 or 6 months
• Simple mechanical trigger
closes bottles in situ.
• No sample transfer required
at the well head for VOCs
-No exposure to air 2
3. How the Snap Sampler works….
Insert
Insert
Push
down to
40ml 125ml set Snap
Cap
3
4. How the Snap Sampler works…continued
Hang on
Lower downhole
Insert Dock Ring
Trim
trigger
excess
Add
Snap Cap
safety
cable
tie
Secure
Attach
fitting
• Modular samplers allow up to 4
bottles per trigger
• Multiple triggers can be used for
multiple sampling depths 4
5. Passive, No-Purge, Sampling…
Natural flow-through: Naturally Purged.
Robin and Gillham (1987) natural background flow in a
moderate permeability sand flushed tracers from an isolated
screen interval in 24 hours or less. Ground Water Monitoring Review, v. 7, no. 4,
p. 85-93
Powell and Puls (1993) “passive sampling devices…could
remain open in the screen interval during the recovery
period, then be closed to the collect the sample and brought
to the surface.” Journal of Contaminant Hydrology, v12, p51-77
ASTM (2002) “Low-flow purging differs from traditional
purging…in that its use is based on the observations of
many researchers that water moving through the formation
also moves through the well screen. Thus, the water in the
screen is representative of the formation water surrounding
the screen” Emphasis Added. ASTM designation D-6771-02
USEPA-recommended LOW FLOW sampling relies
on the same natural flow through conditions
5
6. The Advantages…
• FAST, EASY, HIGH DATA QUALITY.
• Fast and easy improves cost, while
high data quality sets
the Snap Sampler apart
• All critical actions take place
submerged in the well
• no well-head sample transfer
• very repeatable
• Sampling personnel do not
affect sample collection 6
7. You can Snap Sample by yourself…
…without this truck…
…and with almost none
of this equipment
7
8. What analytes can be Snap Sampled?
Any--as long as you can collect enough water.
VOCs including MTBE, MEK, TMBs and 1,4-dioxane
Metals, general wet chemistry, SVOCs, PCBs,
perchlorate, pharmaceuticals, and many others.
Long analyte lists are a practical limitation.
However, much is still possible with….
• Minimum Sample Volumes (ITRC)
• Improvements in laboratory technology
Large Volume Injector 8
9. How does comparison data look for the
Snap Sampler?
Example conclusions
from independent Snap Sampler trials:
“passed with flying colors”
-US Army Cold Regions Research Lab
“more consistently representative”
-Parsons
9
10. • Very good correlations (R2=0.99+, 0.98)
• No exposure during pouring yields
slightly higher concentrations
• CVOC constituents
10
Britt, Parker, Cherry, in Prep.
11. • Very good correlation (R2 = 0.99+)
• No exposure during pouring yields slightly
higher concentrations
• BTEX MTBE CVOC 11
TN & Associates, US Navy, unpublished data
12. • Very good correlation (R2 = 0.99+)
• Non volatile shows equivalent concentrations
• Perchlorate
12
Private site, unpublished data
13. Snap Sampler vs. Low Flow
R2 = 0.99 for all analyte
comparisons to low flow
Snap Sample Concentration (g/L)
125ml
Little
Scatter 40ml
Low Flow Purge Sample Concentration (g/L)
• Very good correlation (R2 = 0.99+) for ALL comparisons
• No exposure during pouring yields slightly higher
concentrations
• VOCS, 1,4-dioxane, anions 13
Parsons, 2005, McClellan Air Force Base, Sacramento, CA
14. Low Flow vs. PDB
Low Flow vs. 3 Volume
R2 = 0.76 for VOCs R2 = 0.79 for VOCs
R2 = 0.58 for VOCs R2 = 0.99 for VOCs
Little
Scatter
3 Volume vs. PDB Low Flow vs. Snap Sampler
14
Parsons, 2005, Demonstration of No-Purge Groundwater
Sampling Devices, McClellan AFB, Sacramento, CA
15. 3 volume vs Hydrasleeve
PDB vs Hydrasleeve
R2 = 0.50 for VOCs
R2 = 0.38 for VOCs
R2 = 0.95 for VOCs R2 = 0.90 for VOCs
Less Less
Scatter Scatter
Snap Sampler vs. PDB Snap Sampler vs. 3 volume
15
16. McClellan Conclusion Summary (Parsons)
“..the Snap Sampler …may be more consistently
representative of the actual VOC concentrations in
the well at the time of sample collection.”
What does better data do for you?
16
17. See Data Trends Sooner…
Fewer variables for Snap: actual
Many variables for purge: actual
concentration, pump deployment position concentration, transport, analytical
variability.
variations, equipment calibration,
pumping duration, stability criteria
Discern your data trend…
requirements, wind, temperature, site
surface or ambient air contamination, • Reduce monitoring
bottle fill rate, pour technique, speed of
• Close sites sooner
bottle closure, transport, analytical
variability.
www.SnapSampler.com
17
19. Dedicated Snap Sampler Equipment?
Guarantee consistent,
Snap Samplers are dedicated
long-term, high quality
equipment that will be reused
data with a one-time
for years
expenditure.
The one-time expense is
never repeated, so your after
one event, savings is
NPV Comparison
30-yr cost
comparable to other passive
$401,660
$450,000
approaches that have minimal
$400,000
NPV $ (After Tax)
$350,000
dedicated equipment cost
10-yr cost
$300,000
$201,758
$250,000
$200,000
$150,000
Cost per well depends on may
30-yr cost
$100,000
$196,349
$50,000
factors, but can be as low as
10-yr cost
$0 $105,122
1 4 7 10 13 16 19 22 25 28
$225 at standard prices, less
Time (Years)
with bulk purchases
Snap Sampler Well Purge
www.SnapSampler.com 19
20. Snap Sampling:
• Saves Money
• Improves Consistency and
Repeatability
• Corresponds well with traditional
purge methods
• Generates no waste water
• Improves Health and Safety - no
heavy equipment or noise; short
time in process or traffic areas.
www.SnapSampler.com 20