NB/T 11532-2024Determination of multiple elements (potassium, sodium, calcium, magnesium, chromium, copper, zinc, barium, strontium, iron, aluminum, gallium, nickel, vanadium, germanium, boron, phosphorus, titanium, manganese) content in coal mine water by inductively coupled plasma emission spectroscopy (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

1 Scope

This document describes the determination of potassium, sodium, calcium, magnesium, chromium, copper, zinc, barium, strontium, iron, aluminum, Principles, reagents or materials, instruments and equipment, test procedures, test data processing, precision and accuracy of gallium, nickel, vanadium, germanium, boron, phosphorus, titanium and manganese content Degrees, etc.

This document applies to soluble potassium, sodium, calcium, magnesium, chromium, copper, zinc, barium, strontium, iron, aluminum, gallium, nickel, vanadium, germanium, boron, phosphorus, titanium, and manganese in coal mine water. Determination.

The method detection limit and determination lower limit of each element in this document are shown in Appendix A.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 6682 Specifications and test methods for water used in analytical laboratories

3 Terms and definitions

There are no terms or definitions that require definition in this document.

4 Principle

The sample was acidified and measured using an inductively coupled plasma emission spectrometer. The target elements were gasified, ionized, and excited in the plasma torch.

It emits and radiates characteristic spectral lines. Within a certain concentration range, the intensity of its characteristic spectral lines is proportional to the concentration of the element.

5 Reagents or materials

Unless otherwise specified, only reagents of confirmed high purity were used in the analysis, and the water used was first-grade water as specified in GB/T 6682 or water with Its purity is equivalent to water.