کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5131413 1490888 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel quantitation method for phthalates in air using a combined thermal desorption/gas chromatography/mass spectrometry application
ترجمه فارسی عنوان
روش جدیدی برای اندازه گیری فتالات در هوا با استفاده از یک کروماتوگرافی ترکیبی گرمایی / کاربرد گاز طیف سنجی جرمی
کلمات کلیدی
فتالات روش تزریق مستقیم، لوله های سوربند جذب حرارتی، کروماتوگرافی گاز / طیف سنج جرمی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


- Phthalates are plasticizers added to improve the flexibility and durability of plastics.
- GC systems have been generally recommended for the quantitation of phthalates in air.
- The analysis of ambient phthalates is still difficult due to complicated analytical procedures.
- A new and efficient approach for ambient phthalate analysis is proposed by sorbent tube method.
- The applicability of the proposed method is validated by running actual environmental samples.

In this study, a novel quantitation method was developed to facilitate the simple and effective sampling and analysis of phthalates in air based on a sorbent tube-thermal desorption-gas chromatography-mass spectrometry system combination. The performance of the thermal desorption-based analysis was assessed using three different sorbent combinations [1]: quartz wool (QW) [2], glass wool (GW), and [3] quartz wool plus Tenax TA (QWTN) in terms of relative recovery in reference to a direct injection method. There was no significant difference in the average recovery rate for seven target phthalates based on sorbent tube type (QW, 70.2 ± 4.28; GW, 73.2 ± 8.8; and QWTN, 72.5 ± 5.02%). However, the recovery rate of phthalates in each sorbent tube type was distingusihed by physicochemical properties of the target compound (e.g., molecular weight and boiling point). The recovery rate of the QW tube was high for dimethyl phthalate and diethyl phthalate compared to other sorbent tubes, while that of the GW tube exhibited greater values for dibutyl phthalate, benzyl butyl phthalate, di(2-ethylhexyl) adipate, di(2-ethylhexyl) phthalate, and di-n-octyl phthalate. The simple sorbent tube-thermal desorption approach is feasible for the quantitation of seven phthalates present at 0.45-24.5 ng m−3 levels in actual air samples (20 L).

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 944, 9 November 2016, Pages 29-36
نویسندگان
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