XRF 및 NMR 법에 의한 윤활유 중의 인 함량 비교분석 연구
Determination of phosphorous in lubricating oil by XRF and NMR methods
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.2, pp.168-172
이석근
(한국화학연구원)
임헌성
(한국화학연구원)
한기정
(한국화학연구원)
이석근,
임헌성,
&
한기정.
(2005). XRF 및 NMR 법에 의한 윤활유 중의 인 함량 비교분석 연구, 18(2), 168-172.
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).
- keywords
-
phosphorous in oil,
XRF,
<TEX>$^{31}P$</TEX>-NMR