A simple, rapid, precise and highly accurate RP-HPLC method was develo terjemahan - A simple, rapid, precise and highly accurate RP-HPLC method was develo Bahasa Indonesia Bagaimana mengatakan

A simple, rapid, precise and highly

A simple, rapid, precise and highly accurate RP-HPLC method was developed and validated for determination
of alpha-mangostin content extracted from PLGA-microspheres. Method was developed using a silica-based
deactivated C-18 column (4.6×100 mm, 3 μm) with a mobile phase of 70-80 % v/v acetonitrile (A) and 0.1% v/v
orthophosphoric acid (B), with the following pre-determined timed-gradient program: 70% (A) isocratic for 6 min,
70-75% (A) in 1.2 min, 75-80% (A) in 0.4 min, 80% (A) isocratic for 2.4 min, 80-70% (A) in 0.4 min, finally 70% (A)
isocratic for 5 min, with a flow rate of 1 mL/min, detected at 320 nm by a UV detector. Linearity was obtained over the
range of 1-200 μg/mL with r2=0.9995. The precision was achieved based on repeatability and intermediate precision
with RSD of 0.13-0.6% and 0.57-1.2%, respectively. Percent recovery of 100.55% to 103.82% with RSD 0.086 -
0.15 implied high accuracy of the method. Limit of detection and limit of quantitation were 0.038 and 0.121 μg/ml,
respectively suggesting good sensitivity of the method. The method is envisaged to be effectively used for routine
quality control assay for encapsulated alpha-mangostin in PLGA microspheres.
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Disalin!
RP-HPLC metode yang sederhana, cepat, tepat dan sangat akurat dikembangkan dan divalidasi untuk penentuanalpha-mangostin konten diekstrak dari PLGA-mikrosfer. Metode ini dikembangkan menggunakan berbasis silikakolom C-18 dinonaktifkan (4.6 × 100 mm, 3 μm) dengan fase mobile 70-80% v v asetonitril (A) dan 0,1% v/vasam fosfor (B), dengan program gradien waktunya ditentukan berikut: 70% (A) isokratik selama 6 menit,70-75% (A) di min 1.2, 75-80% (A) di min 0.4, 80% (A) isokratik 2.4 min, 80-70% min 0.4 () di, akhirnya 70% (A)isokratik untuk 5 menit, dengan laju alir 1 mL/min, terdeteksi pada 320 nm oleh detektor UV. Linearitas diperoleh selamakisaran 1-200 μg/ml dengan r2 = 0.9995. Presisi dicapai berdasarkan pengulangan dan menengah presisidengan RSD 0,13-0,6% dan 0,57-1.2%, masing-masing. Pemulihan persen dari 100.55% ke 103.82% dengan RSD 0.086-0,15 tersirat akurasi yang tinggi dari metode. Batas Deteksi dan batas kuantisasi adalah 0,038 dan 0.121 μg/ml,masing-masing menyarankan metode yang baik sensitivitas. Metode yang dipertimbangkan untuk digunakan secara efektif untuk rutinkontrol kualitas assay untuk Alfa-mangostin dienkapsulasi dalam PLGA mikrosfer.
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