This document appears to be a lab report template for determining the total alkalinity of a mineral water sample using a potentiometric technique. The template includes spaces to record the volume of hydrochloric acid added, the pH after each addition, and the endpoint volume which can then be used to calculate the total alkalinity in mg CaCO3/L. The objective is to determine the total alkalinity of a mineral water sample using a potentiometric titration method.
Intercomparison of Different Technologies for the Analysisof Total Mercury in...gurleyuk
Multiple methods promulgated by the EPA for compliance monitoring of mercury in wastewater were investigated and compared to cold vapor inductively coupled plasma mass spectrometry. This study was performed to identify the limitations and benefits associated with each analytical method and to identify how varying waste streams can induce method failures.
Intercomparison of Different Technologies for the Analysisof Total Mercury in...gurleyuk
Multiple methods promulgated by the EPA for compliance monitoring of mercury in wastewater were investigated and compared to cold vapor inductively coupled plasma mass spectrometry. This study was performed to identify the limitations and benefits associated with each analytical method and to identify how varying waste streams can induce method failures.
A presentation describing the US EPA Approved 16 - 48 Hour Colitag Water Test. Both a Presence/Absence and MPN method for testing total coliforms and E.coli in drinking water.
Accidental Releases Analysis for Toxic Aqueous SolutionsBREEZE Software
This paper provides a detailed discussion of the methodologies for quantifying source parameters and modeling downwind concentrations from liquid spills of chlorine dioxide and ammonia aqueous solutions.
Phase equilibrium studies of impure CO2 systems to underpin developments of CCS technologies - presentation by Jie Ke in the Effects of Impurities on CO2 Properties session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Characterization of mining tailings containing sulfides and carbonates applyi...Judson Arantes
Acid mine drainage (AMD) is the process resulting from the oxidation of sulfides exposed to the action of oxygen and water. The characterization of the minerals likely the formation and neutralization of AMD is important for the follow and evaluation of environmental impact. The analysis of X-ray diffraction (XRD) together with the Rietveld method is presented as a promising alternative to favor the identification and quantification of mineral phases. The results of the static test ANC achieved by accounting for carbonates consumed during the test, were correlated with the results obtained by the characterization techniques of X-ray diffraction (XRD) combined with the Rietveld method. The highest concentration of carbonate buffering found in AM2E, which may explain the static test results to be neutralizing for the sample. The major phases identified for both samples were aluminosilicates and quartz, with greater than 70% by weight levels.
A recent study conducted by an independent environmental laboratory proves that TIGG’s 5DC 12 x 30 activated carbon is effective at removing TTHMs from municipal drinking water. The test was sponsored by a municipality that needed to come into compliance with the EPA’s DPB Stage 2 regulations.
The study sponsor historically had high levels of TTHM in its water that ranged between 105 and 171 µg/L. The municipality talked to TIGG about a water purification adsorption system. While some in the industry insist that coal-based activated carbon is the only effective means of removing disinfection byproducts from municipal drinking water, TIGG experts recommended their 5DC 12 x 30 virgin coconut activated carbon.
The municipality had an independent laboratory run a pilot study using a rapid small-scale column test. They used TIGG’s 5DC 12 x 30 NSF activated carbon, which is designed to remove low concentrations of contaminants from potable water. The laboratory found that initial TTHM concentrations of 138 µg/L were reduced to < 1.0 µg/L following treatment with virgin coconut activated carbon. Based on the scale-up of the testing, it was determined that a full scale carbon adsorber would effectively treat TTHMs for 325 days before the bed needed a changeout.
Not only is coconut-based activated carbon effective, it is typically more economical than coal-based activated carbon. The following report shows the laboratory’s results over a 24-day period.
Application of Aqsens Technology: Case studies presented at SPE Oilfield Chem...Aqsens Oy
Aqsens novel method for testing polymeric scale inhibitor was presented with two case studies at SPE International Symposium on Oilfield Chemistry 13th-15th April 2015 in Texas.
Polymeric scale inhibitors can be difficult to detect at MED levels even with sophisticated analytical procedures. The necessary equipment is located in remote laboratories causing delays in obtaining results. It can take weeks to know the effectiveness of the scale control program.
Novel Aqsens technology is based on time-resolved-fluorescence method. It opens the possibility to control scale program efficiency infield with portable field lab unit. The results are ready for use in 10-15 minutes depending on the concentration.
The case studies presented at SPE symposium tested how well Aqsens technology performs compared to current testing possibilities such as HPLC. Aqsens effectiveness was demonstrated on more than 90 produced water samples collected from offshore and onshore wells.
See the full case studies on onshore mature heavy oil field and North Sea fields from attached SPE presentation.
This presentation discusses continuous monitoring and why a new method is needed that measures total nitrogen (TN) as a single result. High temperature catalytic oxidation (HTCO) is also presented as an method for monitoring TN. For more information, go to ssi.shimadzu.com or follow Shiamdzu on Twitter @shimadzussi. Thanks for viewing.
A presentation describing the US EPA Approved 16 - 48 Hour Colitag Water Test. Both a Presence/Absence and MPN method for testing total coliforms and E.coli in drinking water.
Accidental Releases Analysis for Toxic Aqueous SolutionsBREEZE Software
This paper provides a detailed discussion of the methodologies for quantifying source parameters and modeling downwind concentrations from liquid spills of chlorine dioxide and ammonia aqueous solutions.
Phase equilibrium studies of impure CO2 systems to underpin developments of CCS technologies - presentation by Jie Ke in the Effects of Impurities on CO2 Properties session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Characterization of mining tailings containing sulfides and carbonates applyi...Judson Arantes
Acid mine drainage (AMD) is the process resulting from the oxidation of sulfides exposed to the action of oxygen and water. The characterization of the minerals likely the formation and neutralization of AMD is important for the follow and evaluation of environmental impact. The analysis of X-ray diffraction (XRD) together with the Rietveld method is presented as a promising alternative to favor the identification and quantification of mineral phases. The results of the static test ANC achieved by accounting for carbonates consumed during the test, were correlated with the results obtained by the characterization techniques of X-ray diffraction (XRD) combined with the Rietveld method. The highest concentration of carbonate buffering found in AM2E, which may explain the static test results to be neutralizing for the sample. The major phases identified for both samples were aluminosilicates and quartz, with greater than 70% by weight levels.
A recent study conducted by an independent environmental laboratory proves that TIGG’s 5DC 12 x 30 activated carbon is effective at removing TTHMs from municipal drinking water. The test was sponsored by a municipality that needed to come into compliance with the EPA’s DPB Stage 2 regulations.
The study sponsor historically had high levels of TTHM in its water that ranged between 105 and 171 µg/L. The municipality talked to TIGG about a water purification adsorption system. While some in the industry insist that coal-based activated carbon is the only effective means of removing disinfection byproducts from municipal drinking water, TIGG experts recommended their 5DC 12 x 30 virgin coconut activated carbon.
The municipality had an independent laboratory run a pilot study using a rapid small-scale column test. They used TIGG’s 5DC 12 x 30 NSF activated carbon, which is designed to remove low concentrations of contaminants from potable water. The laboratory found that initial TTHM concentrations of 138 µg/L were reduced to < 1.0 µg/L following treatment with virgin coconut activated carbon. Based on the scale-up of the testing, it was determined that a full scale carbon adsorber would effectively treat TTHMs for 325 days before the bed needed a changeout.
Not only is coconut-based activated carbon effective, it is typically more economical than coal-based activated carbon. The following report shows the laboratory’s results over a 24-day period.
Application of Aqsens Technology: Case studies presented at SPE Oilfield Chem...Aqsens Oy
Aqsens novel method for testing polymeric scale inhibitor was presented with two case studies at SPE International Symposium on Oilfield Chemistry 13th-15th April 2015 in Texas.
Polymeric scale inhibitors can be difficult to detect at MED levels even with sophisticated analytical procedures. The necessary equipment is located in remote laboratories causing delays in obtaining results. It can take weeks to know the effectiveness of the scale control program.
Novel Aqsens technology is based on time-resolved-fluorescence method. It opens the possibility to control scale program efficiency infield with portable field lab unit. The results are ready for use in 10-15 minutes depending on the concentration.
The case studies presented at SPE symposium tested how well Aqsens technology performs compared to current testing possibilities such as HPLC. Aqsens effectiveness was demonstrated on more than 90 produced water samples collected from offshore and onshore wells.
See the full case studies on onshore mature heavy oil field and North Sea fields from attached SPE presentation.
This presentation discusses continuous monitoring and why a new method is needed that measures total nitrogen (TN) as a single result. High temperature catalytic oxidation (HTCO) is also presented as an method for monitoring TN. For more information, go to ssi.shimadzu.com or follow Shiamdzu on Twitter @shimadzussi. Thanks for viewing.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
Informe de laboratorio 2 determinación potenciométrica de la alcalinidad
1. QUÍMICA ANALÍTICA II – 2021 LABORATORIO N° 6
Determinación potenciométrica de la Alcalinidad Total de un agua mineral
Informe de laboratorio
NOMBRE DEL ALUMNO/A: COMISIÓN:
FECHA: FIRMA DEL DOCENTE:
Registrar cálculos y resultados
Determinación de la alcalinidad total de una muestra de agua mineral
Técnica potenciométrica
Vol.HCl
(mL)
pH
Vol.HCl
(mL)
pH
Vol.HCl
(mL)
pH
Vol.HCl
(mL)
pH
𝑣𝑝𝑒.(𝑚𝐿) = 𝐴𝑇(𝑚𝑔 𝐶𝑎𝐶𝑂3.𝐿−1) =
