| Document ID (ISN) | 43791 |
| CIS number |
85-704 |
| ISSN - Serial title |
0016-9900 - Gigiena i sanitarija |
| Year |
1983 |
| Convention or series no. |
|
| Author(s) |
Mazur I.A., Pazynič V.M., Mandričenko B.E., Činčevič V.I. |
| Title |
Spectrophotometric determination of arsine in air |
| Original title |
Spektrofotometričeskoe opredelenie arsina v atmosfernom vozduhe [in Russian] |
| Bibliographic information |
May 1983, No.5, p.52-53. 2 ref. |
| Abstract |
Airborne arsine is collected by drawing 20L of air at 1L/min through traps containing dilute sulfuric acid and potassium permanganate. Excess permanganate is neutralised with hydrogen peroxide, and the solution from the traps is evaporated to dryness. Arsenic present in the residue is converted to arsenic chloride and separated by liquid-liquid extraction. The extract is evaporated and treated with a reagent mixture including ammonium molybdate. The resulting blue arsenomolybdate complex is taken up in butanol, and the intensity of the colour is measured at 800nm. Colour is converted to concentration with a standard curve. The minimum measurable concentration is 0.2µg/mL in a 5mL sample, which is equivalent to 1µg of As in 20L of air. |
| Descriptors (primary) |
arsine; determination in air; sampling and analysis |
| Descriptors (secondary) |
arsenic; colorimetry; description of technique |
| Document type |
D - Periodical articles |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
|
| Browse category(ies) |
Arsenic and compounds
Inorganic substances
|
