Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Determination of silicon, phosphorus, iron and aluminum in biodiesel by multicommutated stepwise injection analysis with сlassical least squares method. / Vakh, Christina S.; Bulatov, Andrey V.; Shishov, Andrey Y.; Zabrodin, Andrey V.; Moskvin, Leonid N.
в: Fuel, Том 135, 2014, стр. 198–204.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Determination of silicon, phosphorus, iron and aluminum in biodiesel by multicommutated stepwise injection analysis with сlassical least squares method
AU - Vakh, Christina S.
AU - Bulatov, Andrey V.
AU - Shishov, Andrey Y.
AU - Zabrodin, Andrey V.
AU - Moskvin, Leonid N.
PY - 2014
Y1 - 2014
N2 - Recently suggested multicommutated stepwise injection analysis (MCSWIA) coupled with classical least squares method (CLS) has been developed for silicon, phosphorus, iron and aluminum determination in biodiesel samples after a microwave digestion. This method allows to carry out four color-forming reactions simultaneously: aluminum (III) and iron (III) with chromazurol S and phosphate and silicate ions with ammonium molybdate, in two mixing chambers which are commutated into MCSWIA manifold. The concentrations of analytes were determined by two data matrixes using CLS method. Each of experimental calibration matrixes for CLS were designed with 10 calibration set solutions of 1-10 mg kg-1 for aluminum and 2-20 mg kg-1 for iron, silicon and phosphorus. The appropriate experimental conditions for microwave digestion and automated MCSWIA spectrophotometric determination of analytes were investigated. Recovery tests show results between 98% and 107% for all type of biodiesel samples. The limits of detection (LOD)
AB - Recently suggested multicommutated stepwise injection analysis (MCSWIA) coupled with classical least squares method (CLS) has been developed for silicon, phosphorus, iron and aluminum determination in biodiesel samples after a microwave digestion. This method allows to carry out four color-forming reactions simultaneously: aluminum (III) and iron (III) with chromazurol S and phosphate and silicate ions with ammonium molybdate, in two mixing chambers which are commutated into MCSWIA manifold. The concentrations of analytes were determined by two data matrixes using CLS method. Each of experimental calibration matrixes for CLS were designed with 10 calibration set solutions of 1-10 mg kg-1 for aluminum and 2-20 mg kg-1 for iron, silicon and phosphorus. The appropriate experimental conditions for microwave digestion and automated MCSWIA spectrophotometric determination of analytes were investigated. Recovery tests show results between 98% and 107% for all type of biodiesel samples. The limits of detection (LOD)
U2 - DOI: 10.1016/j.fuel.2014.06.059
DO - DOI: 10.1016/j.fuel.2014.06.059
M3 - Article
VL - 135
SP - 198
EP - 204
JO - Fuel
JF - Fuel
SN - 0016-2361
ER -
ID: 5720822