ASSAY FOR DETERMINATION OF POLYHEXAMETHYLENEGUANIDINE HYDROCHLORIDE CONCENTRATION IN WATER

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专利权人:

发明人:

EFIMOV K.M.,DANILINA N.I.,OVCHARENKO E.O.,DERGACHEVA T.V.

申请号：

RU20040101020

公开号：

RU2252413(C1)

申请日:

2004.01.19

申请国别(地区):

俄罗斯

年份:

2005

代理人:

摘要：

FIELD: analytical chemistry. ^ SUBSTANCE: claimed method includes subsequent addition in analyte solution buffer solution and 0.01 % eosin H solution followed by measuring of solution optical density. As buffer mixture of sodium citrate solution and hydrochloric acid solution with concentration of 0.5 mol/dm3 wherein pH is adjusted up to 2.8 is used. Optical density is measured at wavelength of 545 nm with water as reference for 15 min after eosin H addition. ^ EFFECT: assay of increased precision decreased determination limit. ^ 2 dwg, 3 tbl

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