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XRF 및 NMR 법에 의한 윤활유 중의 인 함량 비교분석 연구

Determination of phosphorous in lubricating oil by XRF and NMR methods

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Abstract

A comparison study of XRF and 31P-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 31P-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 31P-NMR results of two different matrices, however, are in good agreement ranged of 9% (water: 4.9, oil: 5.3).

참고문헌 (8)

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  8. "핵 자기공명 분광학", 자유아카데미, pp.63~68 (2002), 자유아카데미

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