Fast and Efficient RP-HPLC Method for Simultaneous Determination of Water-Soluble Vitamins in Some Nutraceutical Supplements

Abstract

T HE purpose of this study is the development of analytical method for simultaneous determination of water-soluble vitamins (B 1 , B 2 , B 3 , B 6 , B 9 , B 12 and vitamin C) in dietary supplement syrup, multivitamins and mineral dietary supplement syrup with iron, dietary supplement capsules and balanced supplemental nutrition for children and adult gum by using gradient RP-HPLC methods with PDA detector andcalculating the uncertainty for each matrix of analytical results based on the information from the validation process. The separation of water-soluble vitamins was performed on waters Spherisorb ODS2 (250 mm×4.6mm, 5μm) column. The wavelength was 272 nm at room temperature and the detection limits ranged from 2.4 to 8.3 ng/µl. The average recovery was 98%-102 % and correlation coefficient (r) was 0.9997 to 1.

Assessments of Valsartan in the presence of Nebivolol or Amlodipine in solid formulations and its discriminative dissolution behavior via RP‑HPLC and RP‑UPLC methods.

“…The analytical methods were suitably developed and validated [52][53][54][55][56], regarding the accuracy, precision, linearity, Specificity, the limit of detection (LOD) and the quantification limit (LOQ), in agreement to the requirements of ICH guidelines.…”