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GB/T 37248-2018High purity aluminium oxide—Determination of trace metal elements—Inductively coupled plasma optical emission spectrometry (English PDF)

高纯氧化铝痕量金属元素的测定电感耦合等离子体发射光谱法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

November 1, 2019

Scope

GB/T 37248-2018 is the English-translated version of 高纯氧化铝痕量金属元素的测定电感耦合等离子体发射光谱法.

GB/T 37248-2018 is a laboratory method for measuring trace metal impurities in high purity alumina powder by inductively coupled plasma optical emission spectrometry (ICP-OES).

It applies to powders with an aluminium oxide content from 99.9% to 99.995% and covers calcium, chromium, copper, iron, lanthanum, magnesium, manganese, sodium, nickel, lead, silicon, titanium, vanadium, yttrium, zinc and zirconium, each with its own measuring range in mg/kg, from 0.5 to 200.

The sample is dissolved in sulfuric acid under heat and pressure, the solution is excited in the plasma torch, and each element is quantified from the intensity of its characteristic spectral line.

Reagent standard solutions are prepared to GB/T 602 and the water meets GB/T 6682. Laboratories testing high purity alumina use it. It was issued on 28 December 2018 and has applied since 1 November 2019.

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Document preview — GB/T 37248-2018

National Standard of the People's Republic of China

ICS: 71.040.50
Classification: A 43

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Principle

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the determination of trace metals in high purity alumina powder by inductively coupled plasma optical emission spectroscopy (ICP-OES). The method of content.

This standard applies to high purity alumina powder (the mass fraction of alumina content ranges from 99.9% to 99.995%) in calcium, chromium, Determination of trace metal elements such as copper, iron, strontium, magnesium, manganese, sodium, nickel, lead, silicon, titanium, vanadium, niobium, zinc and zirconium. See the measurement range of each element Table 1.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

Preparation of standard solution for GB/T 602 chemical reagent impurity determination

GB/T 6682 Analytical laboratory water specifications and test methods

3 Principle

After the sample is heated and pressurized by sulfuric acid to form a solution, it is excited in the plasma torch flame to emit a characteristic analysis line of the contained element.

The content of the corresponding element is determined according to the intensity of the line of the element to be tested.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

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