کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1171235 1491172 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Matrix effect in second-order data: Determination of dyes in a tanning process using vegetable tanning agents
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Matrix effect in second-order data: Determination of dyes in a tanning process using vegetable tanning agents
چکیده انگلیسی

The aim of this paper is to determine the concentration of three dyes throughout the tanning process of leather using vegetable tanning agents with a sequential injection analyser with second-order data treatment. As the vegetable tanning agents used are highly absorbent species, we focus on three aspects: (i) difficulties with the resolution (ii) the reduction in the working concentration range; and (iii) matrix effects. Ideally, second-order instruments provide “second-order advantage”; i.e. calibration is possible in the presence of uncalibrated interfering species. However, if the interfering species change the instrumental response of the analyte (in scale or shape), standard additions must be used to ensure the accuracy of the estimated analyte concentration. Here we study the presence of matrix effects for three dyes in several samples in order to significantly improve the accuracy of predictions in the presence of such effects. We found that there were matrix effects in at least 80% of the samples with an alpha risk of 5%. We used this method to study the exhaustion of dyes in the dyeing process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 600, Issues 1–2, 26 September 2007, Pages 233–239
نویسندگان
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