RecordNumber
:
75
Doc. No.
:
244A
Call. No.
:
244A
Author
:
Ensafi, A. A.,Safavi, A
Title of Article
:
Flow-injection determination of traces of formaldehyde by the brilliant green-sulphite reaction with spectrophotometric detection
Title Of Periodical
:
ANALYTICA CHEMICA ACTA
VolumNumber
:
No.252
Date
:
(1991)
Page
:
P.167-171
Descriptors
:
Flow system,Kinetic analysis,Spectrophotometry,Formaldehyde,Sulphite,Resins,Eaters
Abstract
:
flow-injection system is proposed for the rapid determination of trace amounts of formaldehyde based on its inhibition of the Brilliant Green-sulphite reaction at pH 7. Formaldehyde in the range 40-3000 ng ml**-1 can be determined at a rate of 35+- 5 samples h**-1. The limit of detection was 20 ng ml**-1. The relative standard deviation for the determination of 1 Mg ml**-1 formaldehyde was 0.2,. The method was applied to the determination of formaldehyde in melamine-formaldehyde resin and chemical industrial waste water.
Indexer
:
1376/12
IndexDate
:
Shahsavary
اطلاعات ثبت
:
GN104890
Link To Document :
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