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ISO 3391:1976

ISO 3391:1976 Cryolite, natural and artificial – Determination of calcium content – Flame atomic absorption method

CDN $85.00

SKU: 6d11bb399a16 Category:

Description

Describes the preparation of the calibration graph and the dissolution of a test portion in concentrated sulphuric acid and heating on a hot-plate until the hydrofluoric acid has evaporated. Treatment of the residue with concentrated hydrochloric acid. Aspiration of the solution into an acetylene/dinitrogen monoxide flame and spectrophotometric measurement of the absorption of the 422.7-nm line emitted by a calcium hollow cathode lamp.

Edition

1

Published Date

1976-09-01

Status

PUBLISHED

Pages

4

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

Describes the preparation of the calibration graph and the dissolution of a test portion in concentrated sulphuric acid and heating on a hot-plate until the hydrofluoric acid has evaporated. Treatment of the residue with concentrated hydrochloric acid. Aspiration of the solution into an acetylene/dinitrogen monoxide flame and spectrophotometric measurement of the absorption of the 422.7-nm line emitted by a calcium hollow cathode lamp.

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