QUALITY ASSURANCE IN THE METALS LABORATORY

FACTORS YIELDING HIGH QUALITY

Control all parameters Ruggedize system Regular maintenance

SAMPLE INTRODUCTION SYSTEM

CONTROLLING UPTAKE RATE%

EFFI

CIE

NC

Y

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

CONTROLLING UPTAKE RATE

Worn pump tubing?

Worn pump rollers?

Improperly adjusted pump tension?

Clogged nebulizer? Kinked sample capillary?

Real-Time Sample Flow Measurement

How it works: Thermal Flow Measurement

Flow Rate is related to (TempA – TempB)

Heater

Temp. Sensor B

sample

Temp. Sensor A

CONTROLLING UPTAKE RATE

Features of TruFlo:

Adjustable damping

Settable alarm limits

Digital display

Recordable graph

Range: 0 to 4mL/min

CONTROLLING UPTAKE RATE

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:

CONTROLLING TEMPERATURE

0.91

1.11.21.31.41.51.61.71.81.9

22.12.2

10C 15C 20C 25C 30C 35C

ISOMIST TEMPERATURE

Nor

mal

ised

em

issi

on s

igna

l

Al 396.153As 193.696Ca 317.933Cd 214.440Cr 267.716Cu 327.393Fe 238.204Mg 285.213Mg 280.271Mn 257.610P 178.221Pb 220.353Se 196.026Si 251.611Ti 334.940Zn 202.548Zn 206.200Zn 213.857

Intensity vs. Temperature (1ml/min uptake)

Higher accuracy

Higher productivity

Greater reproducibility

Better experiments

CONTROLLING TEMPERATURE

CONTROLLING TEMPERATUREAv

erag

e In

tens

ity (c

ps)

Temperature (˚C)

Ir 212 Pt 214 Ru 240 Au 242 Pd 340 Rh 343

110000

90000

70000

50000

3000045403530252015105

ENHANCED SENSITIVITY FOR PRECIOUS METALS

CONTROLLING TEMPERATURE

Pt 214

Pt 265

Pt Gravimetric ValuePerc

ent P

latin

um (%

)

Temperature (˚C)

16.0

15.9

15.8

15.7

15.6

4540353025201515.5

IMPROVED ACCURACY FOR PRECIOUS METALS

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

SeaSpray nebulizer

Twister spray chamber Argon Humidifier

Ceramic outer tube

DEALING WITH HIGH TDS

IMPROVED STABILITYFully Ceramic D-Torch – Less Maintenance & Improved Stability with High TDS

Glass Expansion October 2013 Newsletter, “How to Achieve High Accuracy with Difficult Samples.”

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

QC SUMMARY

Control sample uptake

Control spray chamber temperature

Control interferences

Control down-time