التفاصيل البيبلوغرافية
| العنوان: |
A green microextraction method in a narrow glass column for copper in artificial saliva extract of smokeless tobacco products. |
| المؤلفون: |
Arain, Sadaf S., Kazi, Tasneem G., Afridi, Hassan I., Naeemullah, null, Brahman, Kapil D., Arain, Muhammad B., Panhwar, Abdul H., Arain, Mariam S., Baloch, Shahnawaz |
| المصدر: |
Journal of Industrial & Engineering Chemistry; Feb2016, Vol. 34, p27-32, 6p |
| مصطلحات موضوعية: |
EXTRACTION (Chemistry), SMOKELESS tobacco, ATOMIC absorption spectroscopy, ARTIFICIAL saliva, COPPER compounds, IONIC liquids, CHEMICAL preconcentration |
| مستخلص: |
A green non-dispersive ionic liquid based microextraction (ND-ILμE) method was proposed for the preconcentration of trace levels of copper (Cu 2+ ) in artificial saliva extract (ASE) of smokeless tobacco products (SLT). A 100 cm long, narrow glass column containing aqueous solution of Cu/ASE was used to increase phase transfer ratio by providing more contact area between two medium, which drastically improve the recovery of Cu-PAN complex into ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [C 4 mim][PF 6 ]. At optimum experimental conditions, the detection limit and the enhancement factor were found to be 0.042 μg L −1 and 85, respectively. This method was successfully applied to real samples. [ABSTRACT FROM AUTHOR] |
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