Determination of phosphorous in lubricating oil by XRF and NMR methods

이석근; 임헌성; 한기정

오늘 하루 그만보기

P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.18, No.2

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Determination of phosphorous in lubricating oil by XRF and NMR methods

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

2005, v.18 no.2, pp.168-172

& (2005). Determination of phosphorous in lubricating oil by XRF and NMR methods. , 18(2), 168-172.

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Abstract

A comparison study of XRF and $^{31}P$-NMR method for the analysis of phosphorous in lubricating oil has been described. Pure oil and water were used for the observation of matrices effect variation by different analytical methods. Quantitative analysis was carried out by XRF and $^{31}P$-NMR using real samples. Significant difference is observed from the slopes on the calibration curves by the XRF due to the matrices (water: 124.0, oil: 276.6). While the result obtained from XRF showed a large matrix effect, the slopes obtained from $^{31}P$-NMR results of two different matrices, however, are in good agreement ranged of ${\pm}9%$ (water: 4.9, oil: 5.3).