±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 768  |  »Ø¸´: 1

ºÎ³¬

½ð³æ (ÕýʽдÊÖ)

[½»Á÷] USPÑÎËáÃ×ŵ»·ËØÈܳö¶È²â¶¨ ÒÑÓÐ1È˲ÎÓë

ÈçÌ⣬¶ÔÓÚUSPÑÎËáÃ×ŵ»·ËØÈܳö¶ÈÏîϼÆËãÏë¸ú¸÷λͬÈÊÌÖÂÛһϡ£
Ò©µäÔ­ÎÄÉæ¼°¼ÆË㲿·ÖµÄժ¼ÈçÏ£º
Standard stock solution: 0.11 mg/mL of USP Minocycline Hydrochloride RS in Medium
Standard solutions: Dilute the Standard stock solution with Medium to obtain solutions with final concentrations of 0.088 mg/mL, 0.0528 mg/mL, 0.0352 mg/mL, 0.022 mg/mL, and 0.0176 mg/mL.
Sample solution: dissolution solution
Injection size: 20 ¦ÌL for the 4 and 24 h time points; 50 ¦ÌL for the 48 and 72 h time points
Analysis: Construct a calibration curve for each sampling interval by plotting the concentration of the
Standard solutions versus peak area. Calculate the slopes and y-intercepts using linear regression analysis.
Calculate the release rate of minocycline:
Resulti = [(rUi − yi)/Si] ¡Á 10/( i ¡Á W ¡Á A)
i =sampling time, 4, 24, 48, 72 h
rUi=peak response from each of the Standard solutions at time i
yi =y-intercept of the calibration curve at sampling time i
Si =slope of the calibration curve at sampling time i
W =weight of the sample (mg)
A =amount of minocycline in the sample (mg/mg of sample) as determined in the Assay
˵Ã÷£ºÈܳö½éÖÊÌå»ý10ml£¬
Tolerances
Time (h)   Release Rate (¦Ìg/h) Average of 6 Measurements
0¨C4       NLT 25
4¨C24      NLT 1.0
24¨C48     NLT 0.2
48¨C72     NLT 0.05

¾ßÌåÈܳöÄÚÈÝÓë¼ÆËãÏà¹ØÐÔ²»´ó£¬Î´ÕªÂ¼£¬ÈçÓÐÐèÒª¿ÉÒÔÌṩ¡£
ÎÊÌ⣺1 °´ÕÕ˵Ã÷£¬¼ÆË㹫ʽÓëiʱ¼äµÄÈܳöҺûÓйØÏµÂ𣿣¨ÈܳöµÄÑùÆ·ÈÜÒº£¬Sample solutionû²ÎÓë¼ÆË㣩£»
          2 Èç¹û¹«Ê¾ÖÐrUiд´í£¬ÊµÎªSample solutionµÄ·åÃæ»ý£¬Õâ¸ö¼ÆËã×îºóµÄµ¥Î»Ò²ÎÞ·¨µÃµ½ug/h?
          3 ²»Í¬Ê±¼ä½øÑùÌå»ý²»Ò»Ö£¬ÕâÖÖ²»Ò»ÖÂҲδÔÚ¼ÆË㹫ʽÖÐÌåÏÖ³öÀ´¡£
±¾È˷dz£À§»ó£¬»¹Çë¹ã´óͬÈÊÖ¸µãÖ¸µã£¬Ð»Ð»¡£
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ԸʵÑé˳Àû¿©
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

½°ËÒ»

гæ (СÓÐÃûÆø)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÇëÎÊÄãÃÇÓõÄÄĸöÆ·ÅÆµÄÈܳöѽ

·¢×ÔСľ³æIOS¿Í»§¶Ë
2Â¥2021-08-11 14:44:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ºÎ³¬ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 275Çóµ÷¼Á +13 Micky11223 2026-03-25 18/900 2026-03-29 16:23 by ѧԱ8dgXkO
[¿¼ÑÐ] 311Çóµ÷¼Á +5 ¶¬Ê®Èý 2026-03-24 5/250 2026-03-29 08:55 by qingfeng258
[¿¼ÑÐ] 343Çóµ÷¼Á +5 °®î¿°í 2026-03-28 5/250 2026-03-28 20:53 by ÌÆãå¶ù
[¿¼ÑÐ] 311£¨085601£©Çóµ÷¼Á +4 liziyeyeye 2026-03-28 4/200 2026-03-28 18:50 by 535743368
[¿¼ÑÐ] 0703±¾¿ÆÖ£ÖÝ´óѧÇóµ÷¼Á +3 nhj_ 2026-03-25 3/150 2026-03-28 13:24 by Iveryant
[¿¼ÑÐ] 085701»·¾³¹¤³Ì£¬267Çóµ÷¼Á +16 minht 2026-03-26 16/800 2026-03-28 12:16 by zllcz
[¿¼ÑÐ] 291Çóµ÷¼Á +15 hhhhxn.. 2026-03-23 21/1050 2026-03-28 11:26 by self2008
[¿¼ÑÐ] 085602 307·Ö Çóµ÷¼Á +7 ²»ÖªµÀ½Ðʲô£¡ 2026-03-26 7/350 2026-03-28 09:57 by ÉñÂí¶¼²»¶®
[¿¼ÑÐ] Çóµ÷¼Á +4 Áã°Ë# 2026-03-27 4/200 2026-03-27 18:07 by yu221
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏʦ´ó0703»¯Ñ§ 275Çóµ÷¼Á +4 RipcordÉϰ¶ 2026-03-27 4/200 2026-03-27 17:00 by zhyzzh
[¿¼ÑÐ] ²ÄÁÏÇóµ÷¼Á +5 .m.. 2026-03-25 5/250 2026-03-27 11:08 by ²»³Ôô~µÄ؈
[ÂÛÎÄͶ¸å] Journal of Mechanical Science and Technology +3 Russ_ss 2026-03-25 5/250 2026-03-27 10:49 by ½С¹û»­´ó±ý
[¿¼ÑÐ] ²ÄÁÏѧ˶£¬Çóµ÷¼Á 6+5 ÌǺù«888ll 2026-03-22 10/500 2026-03-27 08:18 by hypershenger
[¿¼ÑÐ] 351Çóµ÷¼Á +4 Âó¿Ë°¢ÀÚ 2026-03-24 4/200 2026-03-27 00:32 by wxiongid
[¿¼ÑÐ] »·¾³×¨Ë¶324·ÖÇóµ÷¼ÁÍÆ¼ö +5 ÐùСÄþ¡ª¡ª 2026-03-26 5/250 2026-03-26 12:05 by i_cooler
[¿¼ÑÐ] Ò»Ö¾Ô¸¹þ¹¤´ó£¬085400£¬320£¬Çóµ÷¼Á +4 gdlf9999 2026-03-24 4/200 2026-03-25 23:01 by boxking200
[¿¼ÑÐ] 347Çóµ÷¼Á +4 L when 2026-03-25 4/200 2026-03-25 13:37 by cocolv
[¿¼ÑÐ] ÉúÎïѧѧ˶Çóµ÷¼Á +7 СÑò˯×ÅÁË? 2026-03-23 10/500 2026-03-25 02:24 by Çå·ç·÷Ñï¡£ m
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϺ½²ÄÁÏר317·ÖÇóµ÷¼Á +5 ըѽըѽըÊíÌõ 2026-03-23 5/250 2026-03-24 16:52 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-24 4/200 2026-03-24 16:41 by peike
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û