ISO 17294-1:2004 specifies the principles of inductively coupled plasma mass spectrometry (ICP-MS) and provides general directions for the use of this technique for determining elements in water. Generally, the measurement is carried out in water, but gases, vapours or fine particulate matter may be introduced too. ISO 17294 applies to the use of ICP-MS for water analysis. The ultimate determinations of the elements are described in the separate parts of ISO 17294, one for each series of elements and matrix. The other parts of ISO 17294 refer the reader to the guidelines presented in ISO 17294-1:2004 for the basic principles of the method and for configuration of the instrument.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
5.1 General
5.2 Sample introduction
5.3 Torch and plasma
5.4 Gas and gas control
5.5 Generator
5.6 Transfer of the ions to the mass spectrometer
5.7 Mass spectrometer
5.8 Signal processing and instrument control
6 Interferences by concomitant elements
6.1 General
6.2 Spectral interferences
6.3 Non-spectral interferences
7 Adjustment of the apparatus
7.1 General
7.2 Tuning the apparatus
7.3 Verification of instrument performance criteria
8 Preparatory steps
8.1 General
8.2 Choice of isotopes
8.3 Choice of instrumental settings
8.4 Choice of integration time
8.5 Choice of reference elements (internal standards)
8.6 Linearity and working range
8.7 Composition of calibration solutions
8.8 Method development for cool plasma conditions
8.9 Determination of the method performance
9 Procedure
9.1 General
9.2 Calibration
9.3 Necessary solutions
9.4 Measurement
Annex A Spectral interferences, choice of isotopes and method detection limits for quadrupole ICP-MS instruments (informative)
ISO 3534-1:2006 Statistics -- Vocabulary and symbols -- Part 1: General statistical terms and terms used in probability
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
ISO 3534-1:2006 Statistics -- Vocabulary and symbols -- Part 1: General statistical terms and terms used in probability
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 1: General principles and definitions
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results -- Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 6206:1979 Chemical products for industrial use -- Sampling -- Vocabulary
ISO 6955:1982 Analytical spectroscopic methods -- Flame emission, atomic absorption, and atomic fluorescence -- Vocabulary
ISO Guide 30:1992 Terms and definitions used in connection with reference materials
ISO Guide 32:1997 Calibration in analytical chemistry and use of certified reference materials
ISO Guide 33:2000 Uses of certified reference materials