1. QUALITY ASSURANCE
IN THE METALS LABORATORY

2. FACTORS YIELDING HIGH QUALITY
 Control all parameters
 Ruggedize system
 Regular maintenance

3. SAMPLE INTRODUCTION SYSTEM

4. CONTROLLING UPTAKE RATE
%EFFICIENCY
0
10
20
30
40
50
60
0.03 0.11 0.27 0.5 0.61 1.4 2.1
UPTAKE RATE (ML/MIN)
Transport Efficiency vs. Uptake

5. CONTROLLING UPTAKE RATE
 Worn pump tubing?
 Worn pump rollers?
 Improperly adjusted
pump tension?
 Clogged nebulizer?
 Kinked sample capillary?
Real-Time Sample Flow Measurement

6. How it works: Thermal Flow Measurement
 Flow Rate is related to (TempA – TempB)
Heater
Temp. Sensor B
sample
Temp. Sensor A
CONTROLLING UPTAKE RATE

7. Features of TruFlo:
 Adjustable damping
 Settable alarm limits
 Digital display
 Recordable graph
 Range: 0 to 4mL/min
CONTROLLING UPTAKE RATE

8. CONTROLLING TEMPERATURE
 Standard glass cyclonic Twister
spray chamber; e.g. KT-1013
 Quartz cyclonic Twister spray
chamber; e.g. KT-1013Q
 High purity PFA cyclonic spray
chamber; e.g. KT-1013P
 Low volume Twinnabar spray
chamber; e.g. KT-1013T
 Glass, quartz and PFA spray
chambers are interchangeable
IsoMist Configurations:

9. CONTROLLING TEMPERATURE
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
10C 15C 20C 25C 30C 35C
ISOMIST TEMPERATURE
Normalisedemissionsignal
Al 396.153
As 193.696
Ca 317.933
Cd 214.440
Cr 267.716
Cu 327.393
Fe 238.204
Mg 285.213
Mg 280.271
Mn 257.610
P 178.221
Pb 220.353
Se 196.026
Si 251.611
Ti 334.940
Zn 202.548
Zn 206.200
Zn 213.857
Intensity vs. Temperature (1ml/min uptake)

10.  Higher accuracy
 Higher productivity
 Greater reproducibility
 Better experiments
CONTROLLING TEMPERATURE

11. CONTROLLING TEMPERATURE
AverageIntensity(cps)
Temperature (˚C)
Ir 212 Pt 214 Ru 240 Au 242 Pd 340 Rh 343
110000
90000
70000
50000
30000
45403530252015105
ENHANCED SENSITIVITY FOR PRECIOUS METALS

12. CONTROLLING TEMPERATURE
Pt 214
Pt 265
Pt Gravimetric Value
PercentPlatinum(%)
Temperature (˚C)
16.0
15.9
15.8
15.7
15.6
45403530252015
15.5
IMPROVED ACCURACY FOR PRECIOUS METALS

13. CONTROLLING INTERFERENCES
 ICP-MS
 Ionization
 Space-charge
 Suppression
 ICP-OES
 EIE
 Suppression
 Noise
Internal Standardization:
Trident Internal Standard Kit
 Modular construction
 Zero dead-volume
connections
 Built-in mixing chamber

14.  SeaSpray nebulizer
 Twister spray chamber
 Argon Humidifier
 Ceramic outer tube
DEALING WITH HIGH TDS

15. IMPROVED STABILITY
Fully Ceramic D-Torch – Less Maintenance & Improved Stability with High TDS
Glass Expansion October 2013 Newsletter, “How to Achieve High Accuracy with Difficult Samples.”

16. ENHANCE DAY-TO-DAY REPRODUCIBILTY
 Re-usable inline filter.
 Nebulizer cleaning tool.
 Black flushing adapter.
 Real-Time sample monitor.
QA Kit: P/N KT-1136

17. QC SUMMARY
 Control sample uptake
 Control spray chamber temperature
 Control interferences
 Control down-time