Separation and preconcentration trace amounts of mercury (II) from water samples using solvent-assisted dispersive solid phase extraction and spectrophotometric determination
Author(s):
Abstract:
In this study, solvent-assisted dispersive solid phase extraction (SADSPE) method was developed and applied for separation, preconcentration, and spectrophotometric determination of Hg (II) in natural water samples. Dithizone was used as a chelating and chromogenic agent. Several variables that affect the efficiency and sensitivity of extractive-spectrophotometric procedure such as type and amount of sorbent, type and volume of dispersive solvent, sulfuric acid concentration, dithizone concentration, and salt concentration were investigated and optimized. After optimization of the complexation and extraction conditions, an enrichment factor of 15 was obtained. The calibration curve was linear in the range of 5250 µg L1 and the limit of detection was 1.5 µg L1. The relative standard deviation for 100 µg L1 of Hg (II) was lower than 2.5%. The proposed method was applied to the determination of Hg (II) in several natural water samples with satisfactory results.
Keywords:
Language:
Persian
Published:
Journal of Applied Chemistry Today, Volume:11 Issue: 38, 2016
Pages:
63 to 74
https://magiran.com/p1527686
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!