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 Wysłany: Pią 5:06, 11 Lut 2011 Temat postu: ugg boots ireland Determination of azithromycin Zi |
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Determination of azithromycin Zithromax content
5mL acetonitrile to dissolve, add the mobile phase to volume, shake @ Contact, Tel: (o4l1) 472o092 (Office) Author: Li Fasheng (1967 a). Male. Peach County, Hunan Province, Lu. Lecturer, Department of Chemistry, Dalian Medical University,[link widoczny dla zalogowanych], a major in chemistry teaching and research work Received Date :2000 -11-05 Spectroscopy Laboratory No. 18 uniform, dubbed the concentration of 2000 ~ g / mL of azithromycin toxin standard solution. Some of the precise amount of solution were added diluted to a concentration of mobile phase 200,500,800,1000,1200,1500,1800 ~ g / mL of azithromycin toxin standard solution. 3 Results and discussion 3.1 to 2.3 by standard curve has been prepared from 8 in the concentration of standard solution, in accordance with the above chromatographic conditions for analysis. The peak area by the sample the relationship between sample concentration and draw the calibration curve. Regression equation for a 2410.2 +2450.8 x A 0.9992 correlation coefficient r (linear range of 200 - 2000 ~ g / mL). 3.2 The recovery rate experiment was added in the sample of known content standards, the content of external standard method used to calculate recovery. Were taken within the linear range of the concentration of point 3 of known concentration of added standard,[link widoczny dla zalogowanych], sample 3 times per point to calculate the average recovery of Aceh 99.34 toxin. 3.3 The precision check standard series 500 , 1000,1500 ~ g / mL solution, 5 times repeated injection, calculate the peak area of Aceh toxins, RSD were 2.20,1.00,2.07. 3.4 Batch Zithromax different mold claims in Aceh content from 3 different batches Zithromax samples were accurately weighed sample equivalent to lOOmg Aziz toxins in lOOmL flask,[link widoczny dla zalogowanych], add 5mL acetonitrile solution,[link widoczny dla zalogowanych], ultrasonic, add the mobile phase to volume, filtered after shaking the injection. 95804009,95864029,95864048 of three different batch samples to determine the toxin content of which Aziz, the results were: 98.7,99.2%, i00.3. 02469 fJmin3.5 chromatographic behavior when the mobile phase diagram under acidic chromatogram determined by this Law, the main bee retention time of approximately 3.9min,[link widoczny dla zalogowanych], the chromatographic process can be completed within 8min, the main bee sharp symmetrical peak shape, as shown in Figure 1.
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