Simultaneous Kinetic‐Spectrophotometric Determination of Hydrazine and its Derivatives by Partial Least Squares and Principle Component Regression Methods
作者:
Mohammad Ali Karimi,
Mohammad Mazloum Ardakani,
Omran Moradlou,
Reza Behjatmanesh‐Ardakani,
Fatemeh Banifatemeh,
期刊:
Journal of the Chinese Chemical Society
(WILEY Available online 2007)
卷期:
Volume 54,
issue 1
页码: 15-21
ISSN:0009-4536
年代: 2007
DOI:10.1002/jccs.200700004
出版商: WILEY‐VCH Verlag
关键词: Simultaneous determination;Hydrazine;Partial least squares;Principal component regression
数据来源: WILEY
摘要:
AbstractSimultaneous kinetic‐spectrophotometric determination of a ternary mixture of hydrazine (HZ) and its derivatives by principal component regression (PCR) and partial least squares (PLS) calibration is described. The methods were based on the difference observed in the reduction rate of iron(III) with HZ, thiosemicarbazide (TSCZ) and phenylhydrazine (PHZ) in the presence of 2,2′‐bipyridine (Bpy). The colored complex of [Fe(Bpy)3]2+was formed in sodium dodecyl sulfate (SDS) as micellar media, and then monitored at 520 nm. The results showed that simultaneous determination of HZ, TSCZ and PHZ could be performed in their concentration ranges of 1.0–70.0, 0.2–6.0 and 0.1–10.0 μg mL−1, respectively. The root mean squares errors of prediction (RMSEP) of HZ, TSCZ and PHZ were 0.719, 0.164 and 0.105 (for PLS) 0.788, 0.166 and 0.993 (for PCR), respectively. Both methods (PCR and PLS) were validated using a set of synthetic sample mixtures and then applied for simultaneous determination of HZ, TSCZ and PHZ in
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