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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 51, Number 2
JKCSEZ 51(2)
April 20, 2007 

Simple and Selective Flow Injection Catalytic Determination of Ruthenium with Spectrophotometric Detection

분광광도 검출법으로 간단하고 선택적인 흐름주입촉매법에의한 루테늄 정량
Behzad Rezaei*, Najmeh Majidi

Behzad Rezaei*, Najmeh Majidi
루테늄, FIA, 분광광도법, Pyronin B, 촉매적 정량 , Ruthenium, FIA, Spectrophotometry, Pyronin B, Catalytic Determination
간단하고 선택적인 흐름주입촉매법으로 pH 1.0에서 고황산염(periodate)에 의한 pyronin B의 산화의 촉매 효과를 근간으로 루테늄 정량에 대해 논하였다. 반응속도는 555 nm에서의 흡수를 분광광도법으로 조절하였다. 루테늄 정량의 최적화된 조건으로 검출한계는 0.04 ng/mL로 측정범위로 0.1-10.0 ng/mL(r2=0.9982)와 10.0-50.0 ng/mL (r2=0.9934), 그리고 시료속도는 30±5 samples/h를 얻었다. 5번 측정의 상대표준편차는 1.44%를 넘지 않았다. 제안된 본 방법은 성공적으로 환경 및 생물학적 시료 중에서 루테늄의 초미량 정량에 성공적으로 적용되었다.

A simple, selective and highly sensitive flow injection catalytic method was presented for determination of ruthenium based on its catalytic effect on the oxidation of pyronin B by periodate in pH=1.0. The reaction rate is controlled specrophotometricaly by monitoring the dye absorbance at 555 nm. The optimized conditions make it possible to determine ruthenium in the ranges of 0.1-10.0 ng/mL (r2=0.9982) and 10.0-50.0 ng/mL (r2=0.9934) with a detection limit of 0.04 ng/mL and a sample rate of 30±5 samples/h. Relative standard deviation for the results of five replicate measurements does not exceed 1.44%. The proposed method has been successfully applied for quantitation of ultra trace amounts of ruthenium in some environmental and biological samples.

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