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Both minnocycline and rifampin were deteced under the same separation conditions.The mobile phase cinsisted of KH2PO4(60%)and acetontrile(40%)with the final pH adjutsed to ~3.25 using 85% O-phosphoric acid.The HPL system was run under an isocratic reversed-phase condition with a flow rate of 1mL/min.Detection was done at a wavelength of 339 nm. Minocycine was eluted at 1.5 min,and rifamipin was detected at 13 min .In pilot trials,known amounts of antibiotics were added to 1-cm segments of uncoated catheters and extracted as outlined above.More than 90% of both antibiotics were recovered. After construction of standard curves,antibiotic cintrols were measured with a consistent accuracy of >85%.

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hmilywq(½ð±Ò+5): 2011-03-09 09:07:02
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3Â¥2011-03-08 12:30:25
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yinjuanchen

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hmilywq(½ð±Ò+1): 2011-03-09 09:07:08
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Originally posted by hmilywq at 2011-03-08 09:34:01:
Both minnocycline and rifampin were deteced under the same separation conditions.The mobile phase cinsisted of KH2PO4(60%)and acetontrile(40%)with the final pH adjutsed to ~3.25 using 85% O-phospho ...

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2Â¥2011-03-08 11:21:46
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hmilywq(½ð±Ò+7, ·­ÒëEPI+1): 2011-03-09 09:06:45
hmilywq(½ð±Ò+2): 2011-03-09 09:07:17
Both minocycline and rifampin were detected under the same separation conditions.ÔÚÏàͬµÄ·ÖÀëÌõ¼þÏÂÎÒÃÇͬʱ·¢ÏÖÁËÃ×ŵ»·ËغÍÀû¸£Æ½¡£
The mobile phase consists of KH2PO4(60%)and acetonitrile(40%)with the final pH adjutsed to ~3.25 using 85% O-phosphoric acid.
Õâ¸öÁ÷¶¯ÏàÓÉKH2PO4(60%)ºÍͨ¹ý85%µÄÑõºÏÁ×ËáÏ¡Ê͵½×îÖÕPHΪ3.25µÄÒÒëæ£¨40%£©×é³É¡£
The HPLC system was run under an isocratic reversed-phase condition with a flow rate of 1mL/min.Detection was done at a wavelength of 339 nm.
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Minocycline was eluted at 1.5 min,and rifampin was detected at 13 min.
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In pilot trials,known amounts of antibiotics were added to 1-cm segments of uncoated catheters and extracted as outlined above.
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More than 90% of both antibiotics were recovered. After construction of standard curves,antibiotic cintrols were measured with a consistent accuracy of >85%.
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4Â¥2011-03-08 12:44:54
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