ComplianceOnline

Metallurgical-grade fluorspar -- Determination of lead content -- Solvent extraction atomic absorption spectrometric method


Document Number: ISO 9779:1993
File Size: 457 kB
Language: English
Provider: ANSI
Shipping: Available for download - Link will be provided in My ComplianceOnline section

Price: $49.00
Product Details

The principle of the method specified is to decompose a test portion by a mixture of nitric, hydrofluoric and perchloric acids, dissolving the salts in hydrochloric acid after evaporation to dryness, extracting the lead from a dilute hydrochloric acid solution of the decomposed test portion into a solution of tri-n-octylphosphine oxide in 4-methyl-2-pentanone, aspirating the extract into the air/acetylene flame of an atomic absorption spectrometer, and measuring the absorbance at 283,3 nm. Applies to products having lead contents in the range 0,0006 % (m/m) to 0,01 % (m/m).

Product Reviews

This product hasn't received any reviews yet. Be the first to review this product! Write review

Best Sellers
You Recently Viewed
    Loading
Loading...