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 (0.990104 M, 0.996104 M, 0.999104 M, 1.004104 M, 1.005104 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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