Spectrophotometric determination of thiosulfate and tetraphenylborate ions through ligand exchange reaction at solid surface

Autor:	P. O'Brien, M. C. Mehra
Rok vydání:	1976
Předmět:	inorganic chemicals Thiosulfate chemistry.chemical_compound Tetraphenylborate Aqueous solution chemistry Ligand Reagent Inorganic chemistry Halogen Qualitative inorganic analysis Analytical Chemistry Ion
Zdroj:	Mikrochimica Acta. 66:603-609
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01220120
Popis:	A Spectrophotometric method is presented for the microanalysis of analytically important thiosulfate and tetraphenylborate anions in an aqueous solution. The method is based on ligand exchange in a dynamic approach incorporating a solid reagent mercuric chloranilate. The common cations Na+, K+, Al3+, Ca2+, and Mg2+ do not interfere and the anions CH3COO−, C2O42−, SO4−, C3H4OH-(COO)33− and NO3− do not cause any adverse effects. The heavy metals Pb2+, Cd2+, Fe2+, Cu2+, and Zn2+ cause a negative interference while the halogens and SCN− type of anions give a positive interference. The method is sensitive up to 5 ppm of tetraphenyl-borate anion and 10 ppm of the thiosulfate anion.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8717d283e09775f4081e121eb1050031 https://doi.org/10.1007/bf01220120 Zobrazit plný text záznamu Full text from SpringerLink