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      Analisis Pengaruh Suhu, Wadah, dan Waktu Penyimpanan terhadap Stabilitas Kadar Working Standard Alfa Tokoferol menggunakan KCKT

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      Date
      2025
      Author
      Ismah, Clarissa Nathania
      Laila, Farida
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      Abstract
      Baku pembanding sekunder merupakan standar sekunder yang digunakan sebagai pengganti standar primer dalam pengujian sehari-hari di laboratorium farmasi. Penelitian ini bertujuan menganalisis pengaruh suhu, jenis wadah, dan lama penyimpanan terhadap stabilitas kadar baku pembanding sekunder alfa tokoferol. Pengujian dilakukan selama 120 hari dengan variasi suhu dan wadah menggunakan metode KCKT dengan kolom Luna 5u C18, fase gerak metanol 100%, laju alir 1,5 mL/menit dan panjang gelombang 292 nm. Hasil penelitian menunjukkan bahwa suhu berpengaruh signifikan terhadap stabilitas kadar baku pembanding sekunder alfa tokoferol. Suhu -20 ? terbukti dapat memperlambat degradasi dan mempertahankan kestabilan hingga 120 hari dengan cara menghambat proses oksidasi yang ditunjukkan oleh persentase penurunan kadar terkecil sebesar 3,09%. variasi jenis wadah tidak memberikan pengaruh signifikan terhadap penurunan kadar yang mengindikasikan bahwa jenis wadah yang digunakan sudah sesuai dan tidak memengaruhi konsentrasi senyawa murni didalamnya.
       
      Working standard are secondary standards used as substitutes for primary standards in daily testing at pharmaceutical laboratories. This study aims to analyze the effect of temperature, container type, and storage duration on the stability of the secondary reference standard alpha-tocopherol. The testing was conducted over 120 days with variations in temperature and containers using the KCKT method with a Luna 5u C18 column, 100% methanol mobile phase, flow rate of 1.5 mL/minute, and wavelength of 292 nm. The results of the study indicate that temperature significantly affects the stability of working standard alpha tocopherol. Temperature of -20 ? was prooven to slow down degradation and maintain stability for up to 120 days by inhibiting the oxidation process, as indicated by the smallest percentage decrease in concentration of 3.09%. Variations in container type did not significantly affect the decrease in concentration, indicating that the type of container used was appropriate and did not affect the concentration of the pure compound inside.
       
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      http://repository.ipb.ac.id/handle/123456789/166359
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      • UT - Chemistry Analysis [103]

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      Indonesia DSpace Group 
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