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Revised Method for the Preparation of Standards in the Sodium Picrate Assay of HCN 1

1967; Wiley; Volume: 7; Issue: 3 Linguagem: Inglês

10.2135/cropsci1967.0011183x000700030031x

1435-0653

David G. Gilchrist, W. E. Lueschen, C. N. Hittle,

Analytical chemistry methods development

The proposed revised sodium picrate assay method relies on recovery rather than solution standards. The recovery standards are prepared by releasing HCN from stock cyanide solutions, recovering the HCN on alkaline picrate paper strips, followed by elution in distilled H 2 O.