کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4424243 1619154 2016 6 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
A simultaneous analysis method of polycyclic aromatic hydrocarbons, nicotine, cotinine and metals in human hair
ترجمه فارسی عنوان
روش تجزیه و تحلیل همزمان از هیدروکربن های چندحلقه ای معطر، نیکوتین، کوتینین و فلزات در موی انسان
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کلمات کلیدی
تجزیه و تحلیل همزمان؛ مو؛ هیدروکربن های آروماتیک چندحلقه‌ای؛ نیکوتین؛ کوتینین؛ فلزات
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• Organic compounds and metals in hair are important environmental exposure markers.
• We aimed to develop a simultaneously analysis method to quantify these compounds.
• Tetramethylammonium hydroxide (TMAH) was utilized for hair digestion.
• Mixture of n-hexane and dichloromethane was used to extract organic components.
• Our method could simultaneously analyze organics and metals using little hair.

Polycyclic aromatic hydrocarbons (PAHs), nicotine, cotinine, and metals in human hair have been used as important environmental exposure markers. We aimed to develop a simple method to simultaneously analyze these pollutants using a small quantity of hair. The digestion performances of tetramethylammonium hydroxide (TMAH) and sodium hydroxide (NaOH) for human hair were compared. Various solvents or their mixtures including n-hexane (HEX), dichloromethane (DCM) and trichloromethane (TCM), HEX:DCM32 (3/2) and HEX:TCM73 (7/3) were adopted to extract organics. The recoveries of metals were determined under an optimal operation of digestion and extraction. Our results showed that TMAH performed well in dissolving human hair and even better than NaOH. Overall, the recoveries for five solutions were acceptable for PAHs, nicotine in the range of 80%–110%. Except for HEX, other four extraction solutions had acceptable extraction efficiency for cotinine from HEX:TCM73 (88 ± 4.1%) to HEX:DCM32 (100 ± 2.8%). HEX:DCM32 was chosen as the optimal solvent in consideration of its extraction efficiency and lower density than water. The recoveries of 12 typical major or trace metals were mainly in the range of 90%–110% and some of them were close to 100%. In conclusion, the simultaneous analysis of PAHs, nicotine, cotinine, and metals was feasible. Our study provided a simple and low-cost technique for environmental epidemiological studies.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 219, December 2016, Pages 66–71
نویسندگان
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