ON-LINE HYDRIDE GENERATION TECHNIQUE USING ULTRASONIC NEBULIZER FOR SIMULTANEOUS DETERMINATION OF As, Bi, Sb, Se AND Te BY ICP-OES
عنوان مقاله: ON-LINE HYDRIDE GENERATION TECHNIQUE USING ULTRASONIC NEBULIZER FOR SIMULTANEOUS DETERMINATION OF As, Bi, Sb, Se AND Te BY ICP-OES
شناسه ملی مقاله: TCPCO03_155
منتشر شده در سومین همایش ملی تکنولوژی های نوین در شیمی،پتروشیمی و نانو ایران در سال 1395
شناسه ملی مقاله: TCPCO03_155
منتشر شده در سومین همایش ملی تکنولوژی های نوین در شیمی،پتروشیمی و نانو ایران در سال 1395
مشخصات نویسندگان مقاله:
E Zolfonoun - NFCRS, Nuclear Science and Technology Research Institute,Tehran, Iran
S.R Yousefi - NFCRS, Nuclear Science and Technology Research Institute,Tehran, Iran
خلاصه مقاله:
E Zolfonoun - NFCRS, Nuclear Science and Technology Research Institute,Tehran, Iran
S.R Yousefi - NFCRS, Nuclear Science and Technology Research Institute,Tehran, Iran
This work describes a new and novel technique for on-line hydride generation using ultrasonic nebulizer for simultaneous determination of As, Sb, Bi, Se, and Te by inductively coupled plasma optical emission spectrometry (ICP-OES). In this technique, hydride gases are produced directly in the spray chamber of ultrasonic nebulizer without using any device such as gas phase separator which is mandatory in classic hydride generation method. A number of parameters that influence the signal intensity and stability have been evaluated for an instrumental setup. Underoptimum conditions, limits of detection were lower than 0.25 ng mL-1 for all analytes with 2% or better RSD. This method improved 56 to 450 times better detection limits than the pneumatic nebulizer
کلمات کلیدی: Hydride generation, Ultrasonic nebulizer, ICP-OES
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/490987/