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  • 2021-08-23

    為什么固(gu)體制劑(ji)(ji)(ji)要進行(xing)溶(rong)(rong)(rong)(rong)出度(du)(du)(du)測(ce)定(ding)(ding)?近年來研究證(zheng)明(ming),不僅是(shi)難溶(rong)(rong)(rong)(rong)性藥(yao)(yao)物(wu)易(yi)溶(rong)(rong)(rong)(rong)性藥(yao)(yao)物(wu)也(ye)會(hui)因制劑(ji)(ji)(ji)的配方(fang)(fang)和(he)工藝不同會(hui)造成藥(yao)(yao)物(wu)溶(rong)(rong)(rong)(rong)出度(du)(du)(du)有(you)很大(da)(da)差異。這(zhe)和(he)過去認為的只有(you)難溶(rong)(rong)(rong)(rong)性藥(yao)(yao)物(wu)才有(you)溶(rong)(rong)(rong)(rong)出度(du)(du)(du)的問題(ti)有(you)很大(da)(da)不同。在(zai)(zai)USP中(zhong)規(gui)定(ding)(ding)測(ce)定(ding)(ding)溶(rong)(rong)(rong)(rong)出度(du)(du)(du)的制劑(ji)(ji)(ji)有(you)相當數量是(shi)易(yi)溶(rong)(rong)(rong)(rong)性藥(yao)(yao)物(wu),大(da)(da)多數口服固(gu)體制劑(ji)(ji)(ji)在(zai)(zai)給(gei)藥(yao)(yao)后(hou)(hou)必(bi)須經吸收進入血液循(xun)環,達到(dao)一定(ding)(ding)血藥(yao)(yao)濃(nong)度(du)(du)(du)后(hou)(hou)方(fang)(fang)能奏效(xiao)。藥(yao)(yao)物(wu)從(cong)制劑(ji)(ji)(ji)內(nei)釋(shi)放出并溶(rong)(rong)(rong)(rong)解于(yu)體液是(shi)被(bei)吸收的前提(ti),這(zhe)一過程在(zai)(zai)生物(wu)藥(yao)(yao)劑(ji)(ji)(ji)學中(zhong)稱作(zuo)溶(rong)(rong)(rong)(rong)出,而溶(rong)(rong)(rong)(rong)出的速度(du)(du)(du)和(he)程度(du)(du)(du)稱溶(rong)(rong)(rong)(rong)出度(du)(du)(du)。溶(rong)(rong)(rong)(rong)出度(du)(du)(du)是(shi)指藥(yao)(yao)物(wu)從(cong)片劑(ji)(ji)(ji)或膠囊(nang)劑(ji)(ji)(ji)等固(gu)體制劑(ji)(ji)(ji)在(zai)(zai)規(gui)定(ding)(ding)溶(rong)(rong)(rong)(rong)劑(ji)(ji)(ji)中(zhong)溶(rong)(rong)(rong)(rong)出的速...

  • 2021-08-11

    有(you)些(xie)朋(peng)友(you)可能對(dui)溶(rong)(rong)出(chu)(chu)(chu)(chu)儀(yi)很(hen)陌生,該(gai)儀(yi)器(qi)是(shi)用(yong)來檢(jian)測固體制劑溶(rong)(rong)出(chu)(chu)(chu)(chu)度(du)的(de)(de)(de)(de)專業儀(yi)器(qi),這是(shi)因(yin)(yin)為該(gai)儀(yi)器(qi)可以(yi)很(hen)好的(de)(de)(de)(de)模擬人體的(de)(de)(de)(de)胃腸消(xiao)化運動過程,尤其是(shi)在配(pei)合紫外分光(guang)光(guang)度(du)計(ji),可以(yi)很(hen)準確的(de)(de)(de)(de)得(de)出(chu)(chu)(chu)(chu)藥物的(de)(de)(de)(de)溶(rong)(rong)出(chu)(chu)(chu)(chu)度(du)。目(mu)前(qian)該(gai)儀(yi)器(qi)已經廣(guang)泛(fan)的(de)(de)(de)(de)應用(yong)于(yu)藥物的(de)(de)(de)(de)檢(jian)驗、生產和研究。哪(na)些(xie)因(yin)(yin)素會影響到溶(rong)(rong)出(chu)(chu)(chu)(chu)儀(yi)的(de)(de)(de)(de)實驗結果(guo)呢?1、配(pei)制溶(rong)(rong)出(chu)(chu)(chu)(chu)介質溶(rong)(rong)于(yu)溶(rong)(rong)出(chu)(chu)(chu)(chu)介質中(zhong)的(de)(de)(de)(de)氣(qi)(qi)體對(dui)于(yu)溶(rong)(rong)出(chu)(chu)(chu)(chu)的(de)(de)(de)(de)結果(guo)是(shi)有(you)可能產生干擾的(de)(de)(de)(de),因(yin)(yin)此在配(pei)置溶(rong)(rong)出(chu)(chu)(chu)(chu)介質之前(qian),需要(yao)對(dui)水進行脫(tuo)氣(qi)(qi),目(mu)前(qian)常用(yong)的(de)(de)(de)(de)脫(tuo)氣(qi)(qi)方法(fa)(fa)有(you):超聲、煮沸、真空(kong)等。舉個例子,如果(guo)使(shi)用(yong)加(jia)熱脫(tuo)氣(qi)(qi)方法(fa)(fa),當脫(tuo)氣(qi)(qi)結束后,水溫(wen)降(jiang)低到溫(wen)度(du)...

  • 2021-07-27

    真(zhen)(zhen)空(kong)脫氣(qi)(qi)(qi)機可大大縮短(duan)供熱(re)或冷卻體(ti)(ti)(ti)(ti)系(xi)初度(du)灌水(shui)后的(de)排氣(qi)(qi)(qi)時間,極有(you)利于體(ti)(ti)(ti)(ti)系(xi)的(de)初度(du)調試運轉。因(yin)為可在線(xian)脫除體(ti)(ti)(ti)(ti)系(xi)中的(de)氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti),防(fang)止氣(qi)(qi)(qi)阻(zu),因(yin)而(er)確(que)保體(ti)(ti)(ti)(ti)系(xi)正常運轉期(qi)間安穩牢靠(kao)。還可消除水(shui)泵氣(qi)(qi)(qi)蝕,下降(jiang)體(ti)(ti)(ti)(ti)系(xi)運轉噪音(yin)。因(yin)為脫除了(le)水(shui)中的(de)氧(yang)氣(qi)(qi)(qi),將下降(jiang)體(ti)(ti)(ti)(ti)系(xi)的(de)氧(yang)腐蝕,延長設備(bei)運用壽(shou)命。此外換熱(re)器外表上不會附有(you)氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)氣(qi)(qi)(qi)泡,提(ti)高了(le)傳(chuan)熱(re)功率。該設備(bei)系(xi)真(zhen)(zhen)空(kong)脫氣(qi)(qi)(qi)脫氧(yang),不存(cun)在任何二次污染問題。設備(bei)裝置簡便,全主動控制,運轉安全牢靠(kao),易于維(wei)修(xiu)保養。根據(ju)亨利(Henry)規(gui)律,在必定溫度(du)及壓力下水(shui)中溶解必定數量的(de)氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)。當溫度(du)升...

  • 2021-07-20

    智能(neng)崩解儀是根據《中華人民共和(he)國藥典》(2000版)有(you)關片劑,丸劑等崩解時(shi)(shi)限檢測的(de)規定而研(yan)制的(de)機電一體藥檢儀器。智能(neng)崩解儀操作(zuo)經驗的(de)分(fen)享使(shi)用時(shi)(shi)先(xian)開(kai)(kai)電源,溫(wen)(wen)(wen)度顯(xian)(xian)示(shi)窗顯(xian)(xian)示(shi)當前的(de)溫(wen)(wen)(wen)度正(zheng)值(zhi)約5秒,恢復(fu)顯(xian)(xian)示(shi)實(shi)測水(shui)溫(wen)(wen)(wen)值(zhi);左(zuo)右時(shi)(shi)間顯(xian)(xian)示(shi)窗顯(xian)(xian)示(shi)“0:00”;氣(qi)泵開(kai)(kai)始工作(zuo),水(shui)浴槽內砂塊冒出氣(qi)泡(pao),儀器處于待機狀(zhuang)態。1、溫(wen)(wen)(wen)度預(yu)置(zhi)與控溫(wen)(wen)(wen)1)儀器自動(dong)設定預(yu)置(zhi)溫(wen)(wen)(wen)度為37.0℃,按一下溫(wen)(wen)(wen)控的(de)“+”或(huo)“-”鍵(jian),可(ke)顯(xian)(xian)示(shi)4秒鐘的(de)預(yu)置(zhi)溫(wen)(wen)(wen)度值(zhi)以供觀(guan)察,然后重新(xin)顯(xian)(xian)示(shi)實(shi)測水(shui)溫(wen)(wen)(wen)。需要改(gai)變預(yu)置(zhi)溫(wen)(wen)(wen)度值(zhi)時(shi)(shi),先(xian)按一下“+”或(huo)“─”...

  • 2021-06-21

    使用(yong)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)儀(yi)檢測(ce)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)度(du)時有(you)哪些參考標準?溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)儀(yi)是生物(wu)實(shi)驗室(shi)中(zhong)(zhong)(zhong)很(hen)(hen)常見的(de)(de)儀(yi)器,它是用(yong)來檢測(ce)藥(yao)(yao)物(wu)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)度(du)的(de)(de),所(suo)謂藥(yao)(yao)物(wu)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)度(du),指的(de)(de)就是固體制劑(ji)在(zai)某一溶(rong)(rong)(rong)(rong)(rong)劑(ji)中(zhong)(zhong)(zhong)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)的(de)(de)速度(du)以(yi)及(ji)程(cheng)度(du)。在(zai)進(jin)行(xing)這項(xiang)實(shi)驗時,所(suo)采用(yong)的(de)(de)參考標準應該要按(an)照已(yi)有(you)標準中(zhong)(zhong)(zhong)收載檢測(ce)方法(fa)來進(jin)行(xing)。藥(yao)(yao)物(wu)溶(rong)(rong)(rong)(rong)(rong)出(chu)(chu)儀(yi)主機(ji)采用(yong)雙立柱(zhu)升降傳動機(ji)械(xie)結構,電(dian)路部分采用(yong)*的(de)(de)電(dian)路設(she)計,鐘(zhong)控(kong)模(mo)塊使用(yong)程(cheng)序預置(zhi)(zhi)芯片,可以(yi)實(shi)現(xian)實(shi)驗過(guo)程(cheng)中(zhong)(zhong)(zhong)多段位單位時間(jian)(jian)和(he)于是單位時間(jian)(jian)的(de)(de)設(she)置(zhi)(zhi)和(he)提醒(xing),由于它操作簡(jian)單,檢測(ce)精確,性能出(chu)(chu)色,因此(ci)深(shen)受很(hen)(hen)多客戶歡(huan)迎。在(zai)實(shi)際的(de)(de)使用(yong)過(guo)程(cheng)中(zhong)(zhong)(zhong),人們發現(xian)使用(yong)...

  • 2021-06-10

    全自(zi)(zi)動(dong)(dong)(dong)(dong)溶出(chu)儀(yi)機(ji)頭(tou)電動(dong)(dong)(dong)(dong)升(sheng)降,配備(bei)自(zi)(zi)動(dong)(dong)(dong)(dong)升(sheng)降取樣架,自(zi)(zi)動(dong)(dong)(dong)(dong)化程(cheng)度高。具有自(zi)(zi)動(dong)(dong)(dong)(dong)同步(bu)投(tou)(tou)藥(yao)和自(zi)(zi)動(dong)(dong)(dong)(dong)序(xu)(xu)列投(tou)(tou)藥(yao)功(gong)能。具有自(zi)(zi)動(dong)(dong)(dong)(dong)同步(bu)投(tou)(tou)藥(yao)和自(zi)(zi)動(dong)(dong)(dong)(dong)序(xu)(xu)列投(tou)(tou)藥(yao)功(gong)能。采用生物特征識別技術(shu),電容式指紋(wen)識別系統。全自(zi)(zi)動(dong)(dong)(dong)(dong)溶出(chu)儀(yi)的使用方法有哪些呢?一(yi)、試(shi)驗準備(bei)1、用戶按前文介紹,進(jin)(jin)行(xing)(xing)了必要的用戶設(she)置、儀(yi)器設(she)置、程(cheng)序(xu)(xu)編輯后,即可進(jin)(jin)行(xing)(xing)溶出(chu)試(shi)驗。2、升(sheng)起機(ji)頭(tou),向(xiang)水浴箱(xiang)中注水至刻度線,向(xiang)各溶出(chu)杯中注入經脫氣(qi)處理的溶媒,再將機(ji)頭(tou)下降至底位。3、在5自(zi)(zi)動(dong)(dong)(dong)(dong)運行(xing)(xing)界面選擇預(yu)先編輯好(hao)的程(cheng)序(xu)(xu),開(kai)始試(shi)驗。4、儀(yi)器自(zi)(zi)動(dong)(dong)(dong)(dong)進(jin)(jin)行(xing)(xing)水浴的循(xun)環(huan)加熱(re),待溶...

  • 2021-05-26

    體(ti)外(wai)溶出測試(shi)是評(ping)估(gu)藥(yao)(yao)(yao)物(wu)(wu)(wu)體(ti)內釋(shi)放和吸收情況(kuang)有(you)效手段,從而(er)達到預(yu)測其(qi)生物(wu)(wu)(wu)利用度的(de)目的(de)。但目前(qian)傳統(tong)的(de)QC溶出方(fang)法(fa)(fa)(籃法(fa)(fa)/槳(jiang)法(fa)(fa))在(zai)藥(yao)(yao)(yao)物(wu)(wu)(wu)研(yan)(yan)發階段經常表現出區分力(li)不足(zu),體(ti)內體(ti)外(wai)相關性(xing)差(cha)的(de)局限性(xing),很難(nan)快速地對藥(yao)(yao)(yao)物(wu)(wu)(wu)的(de)體(ti)外(wai)性(xing)能(neng)進行評(ping)估(gu),拖(tuo)慢(man)了藥(yao)(yao)(yao)物(wu)(wu)(wu)研(yan)(yan)究(jiu)速度。所以藥(yao)(yao)(yao)物(wu)(wu)(wu)體(ti)外(wai)溶出研(yan)(yan)究(jiu)應該選(xuan)擇(ze)更(geng)(geng)加快速有(you)效的(de)方(fang)法(fa)(fa)——流通(tong)(tong)池(chi)法(fa)(fa)。許多文獻的(de)研(yan)(yan)究(jiu)結果都證(zheng)實,流通(tong)(tong)池(chi)法(fa)(fa)比傳統(tong)的(de)籃法(fa)(fa)/槳(jiang)法(fa)(fa)擁有(you)更(geng)(geng)好的(de)體(ti)內體(ti)外(wai)相關性(xing)、更(geng)(geng)好的(de)區分力(li)、更(geng)(geng)有(you)效地評(ping)估(gu)食物(wu)(wu)(wu)對藥(yao)(yao)(yao)物(wu)(wu)(wu)的(de)影響。流通(tong)(tong)池(chi)法(fa)(fa)能(neng)夠更(geng)(geng)有(you)效地研(yan)(yan)究(jiu)和篩選(xuan)藥(yao)(yao)(yao)物(wu)(wu)(wu)處方(fang),尤其(qi)縮短研(yan)(yan)發周期。更(geng)(geng)...

  • 2021-05-26

    藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)不(bu)(bu)同(tong)(tong)物(wu)(wu)(wu)(wu)(wu)質(zhi)的(de)(de)(de)熔(rong)(rong)(rong)點(dian)(dian)不(bu)(bu)相同(tong)(tong)藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)介紹:物(wu)(wu)(wu)(wu)(wu)質(zhi)的(de)(de)(de)熔(rong)(rong)(rong)點(dian)(dian)是(shi)(shi)指(zhi)該物(wu)(wu)(wu)(wu)(wu)質(zhi)由固態(tai)變(bian)為液態(tai)時(shi)的(de)(de)(de)溫度(du)。不(bu)(bu)同(tong)(tong)的(de)(de)(de)物(wu)(wu)(wu)(wu)(wu)質(zhi)及(ji)不(bu)(bu)同(tong)(tong)的(de)(de)(de)純度(du)有(you)不(bu)(bu)同(tong)(tong)的(de)(de)(de)熔(rong)(rong)(rong)點(dian)(dian)。所(suo)以(yi)藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)的(de)(de)(de)測定(ding)是(shi)(shi)辨認物(wu)(wu)(wu)(wu)(wu)炙(zhi)及(ji)其(qi)純度(du)的(de)(de)(de)重(zhong)(zhong)要(yao)方法(fa)之一。因(yin)此藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)的(de)(de)(de)測定(ding)在(zai)化學工(gong)(gong)(gong)業(ye)、醫(yi)藥(yao)工(gong)(gong)(gong)業(ye)等行(xing)業(ye)中占有(you)很重(zhong)(zhong)要(yao)的(de)(de)(de)地位。藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)是(shi)(shi)簡定(ding)、研究藥(yao)物(wu)(wu)(wu)(wu)(wu)、香料(liao)、染料(liao)及(ji)其(qi)它晶體物(wu)(wu)(wu)(wu)(wu)質(zhi)的(de)(de)(de)儀(yi)(yi)器。為了滿(man)足各行(xing)業(ye)的(de)(de)(de)需要(yao),我們(men)研制了符合(he)中國藥(yao)典的(de)(de)(de)YRT藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)系列。藥(yao)物(wu)(wu)(wu)(wu)(wu)熔(rong)(rong)(rong)點(dian)(dian)儀(yi)(yi)采用了先進的(de)(de)(de)微處(chu)理機控制技(ji)術,硬件設(she)計可靠(kao)合(he)理。保證在(zai)較寬(kuan)范圍的(de)(de)(de)工(gong)(gong)(gong)作(zuo)(zuo)環(huan)境中正(zheng)常工(gong)(gong)(gong)作(zuo)(zuo),常期穩定(ding)可靠(kao)...

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