کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1175639 961811 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of phenol and p-cresol in urine and feces using vacuum microdistillation and high-performance liquid chromatography
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Measurement of phenol and p-cresol in urine and feces using vacuum microdistillation and high-performance liquid chromatography
چکیده انگلیسی

In this article, we describe a simple, sensitive, accurate, and repeatable method for the measurement of phenol and p-cresol (4-methylphenol) in human urine and feces. We examined a number of parameters to identify an optimal extraction protocol. Purification of sample extracts was achieved by low-temperature vacuum microdistillation. Separation was achieved in approximately 15 min by high-performance liquid chromatography (HPLC) with quantification by fluorescence at 284/310 nm. Limits of detection for phenol were 2 ng/ml for urine and 20 ng/g for feces, and those for p-cresol were 10 ng/ml for urine and 100 ng/g for feces. For comparison, approximate mean values for urine are 3 μg/ml for phenol and 30 μg/ml for p-cresol, and those for feces are 1 μg/g for phenol and 50 μg/g for p-cresol. An experienced analyst can process 60 samples each day using this method.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytical Biochemistry - Volume 384, Issue 1, 1 January 2009, Pages 27–33
نویسندگان
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