Значение и использование

This test method is useful for the determination of element concentrations in many natural waters. It has the capability for the simultaneous determination of up to 15 separate elements. High analysis sensitivity can be achieved for some elements, such as boron and vanadium.

Область применения

1.1 This test method covers the determination of dissolved and total recoverable elements in water, which includes drinking water, lake water, river water, sea water, snow, and Type II reagent water by direct current plasma atomic emission spectroscopy (DCP).

1.2 The information on precision and bias may not apply to other waters.

1.3 This test method is applicable to the 15 elements listed in Annex A1 (Table A1.1) and covers the ranges in Table 1.

1.4 This test method is not applicable to brines unless the sample matrix can be matched or the sample can be diluted by a factor of 200 up to 500 and still maintain the analyte concentration above the detection limit.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

TABLE 1 Solutions for Analysis

Element PSolutions for Analysis, μg/L 1 2 3 Al 50 100 190 Be 50 5001000 B 50 5001000 Cd1000 50 500 Cr 5001000 50 Co 50 5001000 Cu1000 50 500 Fe 5001000 50 Pb 500 2001000 Mn 800 50 300 Hg 5001000 200 Ni 50 300 800 Sr 600 50 300 V 1000 50 400 Zn 5001000 50