این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Chemistry and Chemical Engineering، جلد ۲۶، شماره ۲، صفحات ۴۱-۵۱
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Simultaneous Spectrophotometric Determination of Heavy Metal Ions Using Several Chemometrics Methods: Effect of Different Parameters of Savitzky-Golay and Direct Orthogonal Signal Correction Filters
چکیده انگلیسی مقاله Direct orthogonal signal correction(DOSC) and Savitzky-Golay filters (SGF) were applied as preprocessing methods on the original and first derivative absorbance data. Principle component regression (PCR), partial least squares (PLS) and iterative target transformation factor analysis (ITTFA), were used in spectrophotometric simultaneous determination of heavy divalent metal ions, lead, zinc,mercury and cadmium,using 4-(2-pyridylazo) resorcinol (PAR) as metallochromic indicator. The optimum values of the parameters for DOSC and SGF were obtained according to REP, R2 and RMSEP functions for calibration and prediction sets. The concentration for Hg2+, Pb2+, Zn2+ and Cd2+ ions in calibration set were varied between 0 - 12.24, 0 - 9.81, 0 - 0.87 and 0 - 3.96 ppm, respectively. The experimental calibration set was composed of 35 sample solutions and the 7 solutions as prediction set using a simple lattice (4,4) mixture design. The absorption spectra were recorded from 450 to 600 nm and absorbance data were autoscaled. The effect of pH on the sensitivity and selectivity was studied in the range of 1.00 - 11.00 and pH=7.50 was chosen according to net analyte signal (NAS) as a function of pH.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله احمد روح اللهی |
department of chemistry, faculty of sciences, k. n. toosi university of technology, tehran, i. r. iran
سازمان اصلی تایید شده: دانشگاه صنعتی خواجه نصیرالدین طوسی (Khajeh nasir toosi university of technology)

حسین توکلی |
department of chemistry, faculty of sciences, k. n. toosi university of technology, tehran, i. r. iran
سازمان اصلی تایید شده: دانشگاه صنعتی خواجه نصیرالدین طوسی (Khajeh nasir toosi university of technology)

شهزاد نایبی |
department of chemistry, faculty of sciences, razi university, kermanshah, i. r. iran
سازمان اصلی تایید شده: دانشگاه رازی (Razi university)

جهانبخش قاسمی |
department of chemistry, faculty of sciences, razi university, kermanshah, i. r. iran
سازمان اصلی تایید شده: دانشگاه رازی (Razi university)

محمد نوروزی |
researches and petroleum engineering center of kermanshah, kermanshah, i. r. iran

مجید هاشمی |
researches and petroleum engineering center of kermanshah, kermanshah, i. r. iran

نشانی اینترنتی http://www.ijcce.ac.ir/article_7652_0cb4862009a91de010a5c91faad5a194.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات