A method was developed for the determmatlon of thlourea based on the reaction of the latter wrth a solution of lodme m carbon tetrachlorlde at pH 7, followed by measurmg the frequency change of a gold-plated plezoelectnc crystal caused by the unreacted mdme The frequency change IS proportional to th
Determination of traces of cyanide
β Scribed by G.V.L.N. Murty; T.S. Viswanathan
- Publisher
- Elsevier Science
- Year
- 1961
- Tongue
- English
- Weight
- 178 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0003-2670
No coin nor oath required. For personal study only.
β¦ Synopsis
at a slow rate (20-30 drops/min) through a column of ZeoKarb-zz5 (10-15 g in the ammonium form). Collect the percolate, wash the resin several times with distilled water and add the washings to the percolate. Analyse the combined solution for antimony(II1) by the iodimetric method.
Elute the metal ion from the resin by passing aqueous hydrochloric acid (2-6 N) and analyse the eluate for the metal by a conventional method.
π SIMILAR VOLUMES
## Abstract PCB patterns in a new pigment brand are characterized using GCβMS in the single ion monitoring (SIM) mode. Specific PCBs are then used as external standards for GCβECD quantification. The following PCB isomers or groups of isomers have to be determined (CB = chlorobiphenyl): total diCBs
In this comiiiiiliiCiilil)ii. a new rapid and accurate method based 011 the reducing powcr :lnti coiiiplcx-li,rrlling CillXlCit~ of ilSC0rhiC ilCiCfJ" is prr~posud.
Hydrogen cyanide is liberated from aqueous samples by reaction with sulphuric acid and transferred by a stream of nitrogen to a silver porous membrane electrode. Some HCN passes through the membrane into an alkaline dicyanoargentate solution; the cyanide ion produced causes a decrease in the equilib