کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1171950 | 960737 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Automatic flow system for the sequential determination of copper in serum and urine by flame atomic absorption spectrometry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Automatic flow system for the sequential determination of copper in serum and urine by flame atomic absorption spectrometry Automatic flow system for the sequential determination of copper in serum and urine by flame atomic absorption spectrometry](/preview/png/1171950.png)
چکیده انگلیسی
Once optimised and with a sample consumption of about 0.250 mL of serum and 7 mL of urine, the developed flow system allowed linear calibration plots up to 5 mg Lâ1 with a detection limit of 0.035 mg Lâ1 for SCu and linear calibration plots up to 300 μg Lâ1 with a detection limit of 0.67 μg Lâ1 for UCu. The sampling rate varied according to the module employed and was about 360 determinations hâ1 (SCu module), 12 determinations hâ1 (UCu module) or 24 determinations hâ1 (12 urine and 12 serum samples; UCu and SCu modules simultaneously). Repeatability studies (R.S.D.%, n = 10) showed good precision for UCu at concentrations of 25 μg Lâ1 (2.54%), 50 μg Lâ1 (0.90%) and 100 μg Lâ1 (1.62%) as well as for SCu at concentrations of 0.25 mg Lâ1 (8.11%), 1 mg Lâ1 (3.11%) and 5 mg Lâ1 (0.90%). A comparative evaluation showed a good agreement between the results obtained in the analysis of UCu and SCu (n = 18) by both the developed methodology and the reference procedures. Accuracy was further evaluated by means of the analysis of reference samples (Seronorm⢠Trace Elements Urine and Seronorm⢠Trace Elements Serum) and the obtained results complied with the certified values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 555, Issue 2, 12 January 2006, Pages 370-376
Journal: Analytica Chimica Acta - Volume 555, Issue 2, 12 January 2006, Pages 370-376
نویسندگان
Cristina M.P.V. Lopes, Agostinho A. Almeida, João L.M. Santos, José L.F.C. Lima,