RecordNumber
23
Doc. No.
205A
Call. No.
205A
Author
Ensafi, ali A
Title of Article
Catalytic-spectrophotometric determination fo maolybdenum in plant and steel with nile red-hydrazine dihydrochloride
Title Of Periodical
ANALYTICAL LETTERS
VolumNumber
V.22, No.12
Date
(1992)
Page
P.2339-2354
Descriptors
Molybdenum,Nile red-hydrazine,Catalysis,Plant material,Steel
Abstract
Molybdenum was determined by its catalytic effect on the reduction of nile red with hydrazine dihydrochloride. The method was based on measuring the decrease in absorbance of nile red after 3 minutes at 30 C. The calibration curve was linear over the range of 50 - 30000 ng.ml**-1. The detection limit was 30 ng.ml**-1 of Mo(VI). A cation exchanger resin was used to remove interfering ions. Plant materials and steel were used for the determination of molybdenum content. The relative standard deviation was 0.80,for 250 ng.ml**-1 of Mo(VI). Molybdenum could be determined in the presence of even high concentration of phosphate and tungsten.
Indexer
1376/12
IndexDate
Shahsavary
اطلاعات ثبت
GN101739