کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5161819 | 1502271 | 2016 | 58 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Unmixing of mixed oil using chemometrics
ترجمه فارسی عنوان
مخلوط کردن روغن مخلوط با استفاده از شیمی درمانی
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کلمات کلیدی
نفت مخلوط، مخلوط کردن شیمیدرمانی حداقل مربعات متناوب
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
In this study, chemometrics was used to unmix a set of oil samples that had been mixed in the laboratory using three end-member oils. It was shown that the concentrations of individual compounds in the mixed oil varied linearly with the fractional contribution of each end-member oil. However, biomarker ratios in the mixed oils varied non-linearly with the amount of each end-member oil. This study demonstrates that concentrations and ratios of biomarkers yield different results when de-convoluting mixed oils. Concentrations of biomarkers are therefore more suitable than the biomarker ratios for unmixing mixed oils. Alternating least squares of biomarker concentrations (ALS-C) provides an excellent way to calculate the number, proportions, and compound compositions of the end-members in mixed oil samples. The ALS-C results are accurate, regardless of whether end-member oils are included in the sample set. The biomarker ratios of end-member oils cannot be directly obtained by ALS, but can instead be calculated using related compound concentrations computed by ALS-C. This method should be applied and verified widely using actual geochemical data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Geochemistry - Volume 92, February 2016, Pages 1-15
Journal: Organic Geochemistry - Volume 92, February 2016, Pages 1-15
نویسندگان
Zhao-Wen Zhan, Yan-Rong Zou, Jian-Ting Shi, Jia-Nan Sun, Ping'an Peng,