کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1172534 1491184 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The development of an electrochemical sensor for the determination of cyanide in physiological solutions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
The development of an electrochemical sensor for the determination of cyanide in physiological solutions
چکیده انگلیسی

Hydrogen cyanide gas produced during fires can cause poisoning from smoke inhalation. Blood cyanide concentrations in healthy subjects are sub-micromolar. Toxic or fatal blood concentrations are generally considered to be greater than 40 μmol dm−3 but concentrations in survivors can exceed 200 μmol dm−3, while values exceeding 400 μmol dm−3 have been recorded from fatalities.Cyanide in blood is either free in plasma or bound to ferric haemoglobin. Current analytical techniques require sample pre-treatment, generally with extraction of the cyanide from the sample. An amperometric test was developed which could determine free cyanide at physiological pH in a solution of albumin and other blood constituents without sample pre-treatment, with a calibration range exceeding 400 μmol dm−3 and a limit of detection (LOD; using three standard deviations) of 4 μmol dm−3 which is lower than would be treated clinically.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 558, Issues 1–2, 3 February 2006, Pages 158–163
نویسندگان
, ,