New, green and miniaturized analytical method for determination of cefadroxil monohydrate in capsules

Authors

  • Bianca Aparecida de Marco São Paulo State University (UNESP) - School of Pharmaceutical Sciences image/svg+xml
  • Ana Carolina Kogawa São Paulo State University (UNESP) - School of Pharmaceutical Sciences image/svg+xml
  • Hérida Regina Nunes Salgado São Paulo State University (UNESP) - School of Pharmaceutical Sciences image/svg+xml

DOI:

https://doi.org/10.22456/2527-2616.91086

Keywords:

cefadroxil monohydrate, capsules, spectrophotometric method in the visible region, miniaturized method, green analytical chemistry

Abstract

Cefadroxil, an oral antimicrobial, presents few techniques optimized for the reduction of solvents and toxic residues and/or non-use of them. So, a quantitative, new and miniaturized method for determination of cefadroxil monohydrate in capsules has been developed and validated by spectrophotometric method in the visible region according to the international guidelines. The analyzes were performed using microplates containing 96 wells, 1 % of phenolphthalein and sodium hydroxide 0.1 M as reagent at 552 nm. The method was (i) linear in the range of 15-115 µg mL-1, (ii) selective when comparing standard, sample, adjuvants and color reagent, (iii) precise with deviations below 4 %, (iv) accurate when comparing the proposed method with the HPLC method, (v) robusts by making small and deliberate modifications to the method, (vi) besides being fast, low cost, eco-friendly and generates minimal amount of waste. The method can be applied to the routine quality control of cefadroxil monohydrate in capsules and an effective and accessible alternative that contemplates the concepts of current and sustainable green analytical chemistry.

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References

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Published

17-07-2019 — Updated on 10-03-2026

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How to Cite

Aparecida de Marco, B., Carolina Kogawa, A., & Regina Nunes Salgado, H. (2026). New, green and miniaturized analytical method for determination of cefadroxil monohydrate in capsules. Drug Analytical Research, 3(1), 23–28. https://doi.org/10.22456/2527-2616.91086 (Original work published July 17, 2019)

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Section

ORIGINAL ARTICLES