TY - JOUR ID - TI - Determination of Sulfamethoxazole in Pure and Pharmaceutical Samples by Using Direct Method for Calibration Curve of Normal Spectrum of UV-Spectrophotometry AU - Sarra A. Abrahem AU - Khaleda H. Al-Saidi PY - 2020 VL - 23 IS - 4 SP - 1 EP - 4 JO - Al-Nahrain Journal of Science مجلة النهرين للعلوم SN - 26635453 26635461 AB - Normal spectra for sulfamethoxazole solutions were developed and used for the determination of sulfamethoxazole (SMX) antibiotic by using zero-crossing technique and simultaneously determining (SMX) at wavelength 259.00 nm. The correlation coefficient of the calibration curve for the normal spectrum was 0.9990. Linearity was maintained by using concentrations (0.990104 M, 0.996104 M, 0.999104 M, 1.004104 M, 1.005104 M) and the percentage recovery of sulfamethoxazole samples were (99.00%, 99.60%, 99.90 %, 100.40 % and 100.50 %). A statistical analysis confirmed, a precision with accuracy for simultaneous fixing of (SMX). In addition, a British pharmacopoeia method was compared with the method used in this paper using F test.
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