کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1242656 1645368 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A simple, effective mixing chamber used in conjunction with a syringe pump for flow analysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A simple, effective mixing chamber used in conjunction with a syringe pump for flow analysis
چکیده انگلیسی

A simple, effective mixing chamber used in conjunction with a syringe pump for flow analysis is described and evaluated. A mixing chamber was constructed using a conventional 5 mL pipette tip and its performance compared with a widely used mixing coil. The results demonstrate that the mixing coil does not rapidly and completely mix solutions. Utilizing a configuration that reversed solution positions in the chamber with each mixing cycle, the proposed mixing chamber achieved complete mixing in a significantly shorter time than the mixing coil. The influence of injected sample volume on absorbance signals was evaluated by calculating an S1/2 value for the system. As tested with a minimal rinse, the system has no discernable carryover. Testing this new approach in our previously described silicate measurement system resulted in a more than twofold improvement in sensitivity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 81, Issues 4–5, 15 June 2010, Pages 1472–1476
نویسندگان
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