Novel Sensitive Determination Method for a Genotoxic Alkylating Agent, 4-Chloro-1-butanol, in Active Pharmaceutical Ingredients by LC-ICP-MS Employing Iodo Derivatization

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  • HARIGAYA Koki
    Analytical Research Laboratories, CMC Division, Mitsubishi Tanabe Pharma Corp.
  • YAMADA Hiroyuki
    Analytical Research Laboratories, CMC Division, Mitsubishi Tanabe Pharma Corp.
  • YAKU Koji
    Analytical Research Laboratories, CMC Division, Mitsubishi Tanabe Pharma Corp.
  • NISHI Hiroyuki
    Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Yasuda Women’s University
  • HAGINAKA Jun
    School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women’s University

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抄録

An alkylating agent, 4-chloro-1-butanol, is a genotoxic impurity (GTI); it may be generated during the synthesis of active pharmaceutical ingredients (APIs). For the trace-level detection of GTIs in APIs, usually, gas chromatography–mass spectrometry (GC-MS) or liquid chromatography–mass spectrometry (LC-MS) is employed. In this study, a novel LC-inductively coupled plasma (ICP)-MS method was developed and validated. Linearity was observed over the 0.5 – 50 ppm (μg/g API) range, with an R2 value of 0.9994. The detection limit (DL) and quantitation limit (QL) were 0.2 and 0.5 ppm, respectively. The DL and QL values are well over the thresholds specified in the guidelines. The accuracy was 95.1 – 114.7% for concentrations of 1 – 50 ppm, and the relative standard deviation of the spiked recovery test’s repeatability was 6.2%. In addition, six lots of an API were analyzed, and all results were lower than the reported threshold (1 ppm).

収録刊行物

  • Analytical Sciences

    Analytical Sciences 30 (3), 377-382, 2014

    社団法人 日本分析化学会

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