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微(wei)孔(kong)濾(lv)(lv)膜是混(hun)合(he)(he)纖維(wei)素酯合(he)(he)成(cheng)的薄膜濾(lv)(lv)材,經有關單(dan)位(wei)多次廣(guang)泛使(shi)用(yong)(yong),質(zhi)量符合(he)(he)標準。其產品(pin)表面(mian)平滑,質(zhi)地輕(qing)薄,孔(kong)隙率高,且(qie)微(wei)孔(kong)結構均勻,因此具有流(liu)速快,不易(yi)吸附的特點(dian)。該產品(pin)適用(yong)(yong)于制(zhi)藥,生物制(zhi)品(pin),礦(kuang)泵飲料(liao),釀造,鐘表等(deng)工業(ye)方(fang)面(mian)的水質(zhi),醫藥用(yong)(yong)油(you)、潤滑用(yong)(yong)油(you),燃料(liao)用(yong)(yong)油(you)及科(ke)研(yan)實驗(yan)室等(deng)濾(lv)(lv)除(chu)細(xi)菌和(he)微(wei)粒,一般0.65微(wei)米以(yi)上可除(chu)微(wei)粒,0.45以(yi)下可除(chu)菌。下面(mian)小編簡(jian)單(dan)介紹一下微(wei)孔(kong)濾(lv)(lv)膜的使(shi)用(yong)(yong)注意(yi)事項,如下所示:(1)微(wei)孔(kong)濾(lv)(lv)膜只能作為后階段過濾(lv)(lv),濾(lv)(lv)液必須先經過板框或其他(ta)濾(lv)(lv)材預過濾(lv)(lv),以(yi)免濾(lv)(lv)膜堵塞。(2)水...
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開發式(shi)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器使用(yong)(yong)(yong)壽命(ming)(ming)短(duan),其實無需(xu)太過(guo)(guo)(guo)(guo)(guo)擔心(xin),今天就為廣(guang)大(da)的(de)(de)(de)顧客總結兩種造成過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器使用(yong)(yong)(yong)壽命(ming)(ming)短(duan)的(de)(de)(de)原因(yin)。一、開發式(shi)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器的(de)(de)(de)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)材料面(mian)(mian)積太小或單(dan)位容塵能力太小這類問題可(ke)以改用(yong)(yong)(yong)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)面(mian)(mian)積大(da)的(de)(de)(de)多(duo)(duo)濾(lv)(lv)(lv)(lv)器可(ke)以延長使用(yong)(yong)(yong)壽命(ming)(ming),在系統初設(she)計時應(ying)該考慮到這點。較多(duo)(duo)的(de)(de)(de)工(gong)程中,用(yong)(yong)(yong)戶要求(qiu)盡可(ke)能的(de)(de)(de)減少空調占(zhan)用(yong)(yong)(yong)空間,或供(gong)應(ying)商為了實現(xian)大(da)的(de)(de)(de)利潤(run),采用(yong)(yong)(yong)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)面(mian)(mian)積小的(de)(de)(de)便宜(yi)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器。工(gong)程驗收(shou)時,過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器能滿足空氣凈化的(de)(de)(de)要求(qiu),但過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器的(de)(de)(de)使用(yong)(yong)(yong)壽命(ming)(ming)卻比較短(duan)。二、過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器的(de)(de)(de)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)效率偏低可(ke)以調整(zheng)預過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器的(de)(de)(de)效率,可(ke)以延長末端過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)器的(de)(de)(de)使用(yong)(yong)(yong)壽命(ming)(ming)。潔...
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無菌隔(ge)離器技術與(yu)傳統(tong)潔(jie)凈(jing)(jing)室(shi)(shi)、限(xian)制進(jin)出屏(ping)(ping)障系統(tong)(RABS)相比,具有(you)明顯的(de)優勢(shi):1、避(bi)免(mian)安全風險傳統(tong)的(de)潔(jie)凈(jing)(jing)室(shi)(shi),由于(yu)操(cao)作(zuo)(zuo)(zuo)環(huan)境(jing)與(yu)周圍環(huan)境(jing)沒(mei)有(you)物理(li)隔(ge)離,容(rong)易(yi)產生(sheng)交叉污染。另外(wai),操(cao)作(zuo)(zuo)(zuo)人員(yuan)(yuan)直接在潔(jie)凈(jing)(jing)室(shi)(shi)中工作(zuo)(zuo)(zuo),人員(yuan)(yuan)本身(shen)會導致(zhi)固(gu)體顆(ke)粒(li)的(de)產生(sheng)和(he)對潔(jie)凈(jing)(jing)室(shi)(shi)層流的(de)破壞。其中,人員(yuan)(yuan)、環(huan)境(jing)極易(yi)與(yu)高活(huo)性、高毒性的(de)樣品接觸,不利于(yu)保(bao)護人員(yuan)(yuan)的(de)安全。事實證明,潔(jie)凈(jing)(jing)室(shi)(shi)內的(de)微(wei)生(sheng)物和(he)固(gu)體顆(ke)粒(li)濃度也(ye)只能控制在10-3的(de)水平(ping)。開放(fang)式RABS系統(tong),*的(de)操(cao)作(zuo)(zuo)(zuo)環(huan)境(jing)與(yu)B級的(de)潔(jie)凈(jing)(jing)室(shi)(shi)被物理(li)屏(ping)(ping)障隔(ge)開,操(cao)作(zuo)(zuo)(zuo)人員(yuan)(yuan)采用(yong)手(shou)套操(cao)作(zuo)(zuo)(zuo),很(hen)大程(cheng)度減少...
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培(pei)(pei)養(yang)基的(de)(de)(de)滅菌及使(shi)用1.每次(ci)配(pei)(pei)置(zhi)時,要(yao)(yao)注(zhu)意(yi)其(qi)(qi)生產日期(qi)是否在(zai)保(bao)(bao)質期(qi)內,查看其(qi)(qi)開瓶日期(qi)及瓶口密(mi)封性,保(bao)(bao)證(zheng)其(qi)(qi)未(wei)變(bian)質,并且未(wei)吸潮。2.培(pei)(pei)養(yang)基配(pei)(pei)置(zhi)時,稱量要(yao)(yao)準確(que),包括(kuo)鹽水的(de)(de)(de)分裝要(yao)(yao)準確(que)。3.一(yi)(yi)定要(yao)(yao)保(bao)(bao)證(zheng)現(xian)配(pei)(pei)制現(xian)滅菌,未(wei)滅菌的(de)(de)(de)配(pei)(pei)好培(pei)(pei)養(yang)基不(bu)(bu)能長時間放置(zhi),更(geng)不(bu)(bu)可隔夜(ye)。4.滅菌時要(yao)(yao)保(bao)(bao)證(zheng)恒溫、恒壓,同(tong)時要(yao)(yao)保(bao)(bao)證(zheng)有效滅菌時間。5.滅菌過的(de)(de)(de)培(pei)(pei)養(yang)基要(yao)(yao)冰箱(xiang)保(bao)(bao)存,可保(bao)(bao)存一(yi)(yi)周,一(yi)(yi)般不(bu)(bu)超過3天。而(er)且要(yao)(yao)遵循“先(xian)(xian)入先(xian)(xian)出”原則,先(xian)(xian)配(pei)(pei)制的(de)(de)(de)要(yao)(yao)先(xian)(xian)使(shi)用。6.在(zai)使(shi)用時,要(yao)(yao)根據當班(ban)次(ci)的(de)(de)(de)使(shi)用量,用水浴(yu)鍋先(xian)(xian)將(jiang)培(pei)(pei)養(yang)基溶化為液態,然(ran)后及時調低...
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一、微生物實驗(yan)室(shi)(shi)(shi)(shi)注意事(shi)(shi)項(xiang)1、工作(zuo)室(shi)(shi)(shi)(shi)要(yao)矮小平整、光(guang)滑(hua)、無凹(ao)凸不(bu)平或棱(leng)角、四壁及(ji)(ji)屋頂用(yong)不(bu)透水之(zhi)材質,便于擦洗及(ji)(ji)殺菌(jun)(jun)。2、室(shi)(shi)(shi)(shi)內(nei)采光(guang)面積(ji)應(ying)大,從(cong)室(shi)(shi)(shi)(shi)外應(ying)能看到(dao)室(shi)(shi)(shi)(shi)內(nei)的情況。3、為(wei)保證無菌(jun)(jun)室(shi)(shi)(shi)(shi)的潔凈,無菌(jun)(jun)室(shi)(shi)(shi)(shi)周(zhou)圍需設(she)(she)緩(huan)沖(chong)(chong)(chong)走廊,走廊旁再設(she)(she)緩(huan)沖(chong)(chong)(chong)間(jian),其面積(ji)可小于無菌(jun)(jun)室(shi)(shi)(shi)(shi)。4、無菌(jun)(jun)室(shi)(shi)(shi)(shi)、緩(huan)沖(chong)(chong)(chong)走廊及(ji)(ji)緩(huan)沖(chong)(chong)(chong)間(jian)均(jun)設(she)(she)有日(ri)光(guang)燈及(ji)(ji)紫外燈,殺菌(jun)(jun)紫外燈離工作(zuo)臺(tai)以一米(mi)為(wei)宜,其電源(yuan)開關應(ying)設(she)(she)在室(shi)(shi)(shi)(shi)外。5、無菌(jun)(jun)室(shi)(shi)(shi)(shi)與(yu)緩(huan)沖(chong)(chong)(chong)間(jian)進出口應(ying)設(she)(she)推拉(la)門,門與(yu)窗平齊,門縫要(yao)封緊(jin),兩門要(yao)錯開,以免(mian)空氣(qi)對流造(zao)成污染(ran)。二、使用(yong)無菌(jun)(jun)室(shi)(shi)(shi)(shi)注意事(shi)(shi)項(xiang)1、無菌(jun)(jun)室(shi)(shi)(shi)(shi)要(yao)保持(chi)...
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無菌隔離器(qi)(qi)(組合(he)式),幾乎適(shi)用于(yu)無菌制(zhi)劑及無菌原料藥(API)基于(yu)藥典法定方法(薄膜過(guo)(guo)濾法與直接(jie)接(jie)種(zhong)法)的(de)(de)無菌測試。下(xia)面小編簡單(dan)介紹一下(xia)無菌隔離器(qi)(qi)具有哪些性能特點(dian),如下(xia)所示:1.系統預留連接(jie)過(guo)(guo)氧化氫(VHP)發生器(qi)(qi)的(de)(de)接(jie)口與閥門(men),可(ke)選(xuan)配過(guo)(guo)氧化氫蒸(zheng)汽發生器(qi)(qi)進(jin)行高水平(ping)消毒,過(guo)(guo)氧化氫對隔離器(qi)(qi)內空氣及暴露的(de)(de)表面可(ke)達(da)到106芽孢殺滅效(xiao)力;2.系統帶有西門(men)子邏輯控制(zhi)器(qi)(qi)(PLC)進(jin)行全(quan)自(zi)動化控制(zhi)壓力、送(song)風量,并帶有失壓報警功能;3.可(ke)通過(guo)(guo)多種(zhong)方式,例如氣閘(zha)室、帶有RTP系統的(de)(de)傳遞艙等,實現物...
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一次性(xing)表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)碟用(yong)于設備、車間、人員、包裝材料等表(biao)面(mian)(mian)微生物(wu)的(de)測定(ding)。它(ta)可(ke)以(yi)達到預期目標且可(ke)以(yi)較真實的(de)反應潔凈區(qu)表(biao)面(mian)(mian)微生物(wu)情況,明顯的(de)減(jian)少了不定(ding)性(xing)因素的(de)引入(ru)(ru),使(shi)(shi)結果真實可(ke)靠,更加準確。使(shi)(shi)用(yong)方法1、從冷藏柜中取(qu)(qu)出表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)皿,并恢復至(zhi)室溫。2、將表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)皿包裝整體送入(ru)(ru)取(qu)(qu)樣地點(dian),在(zai)(zai)此(ci)過(guo)程(cheng)中逐步(bu)去掉外面(mian)(mian)兩層包裝,di一層包裝在(zai)(zai)操作間打(da)開。3、打(da)開表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)皿上(shang)蓋,使(shi)(shi)培養(yang)基充分接觸(chu)(chu)(chu)(chu)待測表(biao)面(mian)(mian),必要使(shi)(shi)用(yong)手指輕(qing)輕(qing)按壓表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)皿底部中心(xin)約10秒,輕(qing)輕(qing)抬起,將上(shang)蓋從表(biao)面(mian)(mian)接觸(chu)(chu)(chu)(chu)皿一側小心(xin)蓋上(shang)。4、在(zai)(zai)表(biao)面(mian)(mian)接...
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一(yi)次性(xing)培(pei)(pei)養(yang)(yang)皿放置方式及(ji)得出的(de)菌(jun)落(luo)數是多少?回答(da)這個(ge)問(wen)題之(zhi)前,我們(men)先了解一(yi)下(xia)手(shou)術(shu)(shu)室(shi)空(kong)氣凈(jing)(jing)化級別(bie):空(kong)氣潔(jie)凈(jing)(jing)程度是以含塵(chen)濃(nong)度來衡量的(de)。含塵(chen)濃(nong)度越(yue)(yue)高則潔(jie)凈(jing)(jing)度越(yue)(yue)低,反之(zhi)則越(yue)(yue)高。空(kong)氣潔(jie)凈(jing)(jing)手(shou)術(shu)(shu)室(shi)指空(kong)氣潔(jie)凈(jing)(jing)度不低于100000級的(de)手(shou)術(shu)(shu)室(shi)。根據(ju)每(mei)立方米中粒徑大于或等于0.5um空(kong)氣灰塵(chen)離子(zi)數的(de)多少,潔(jie)凈(jing)(jing)手(shou)術(shu)(shu)室(shi)可分(fen)為100級、1000級、10000級、100000級4種(zhong)。其中數字越(yue)(yue)高,凈(jing)(jing)化級別(bie)越(yue)(yue)低。培(pei)(pei)養(yang)(yang)皿放置方式及(ji)得出的(de)菌(jun)落(luo)數是多少?細菌(jun)濃(nong)度:在空(kong)氣中隨機采樣,對采樣培(pei)(pei)養(yang)(yang)基經過培(pei)(pei)養(yang)(yang)得出菌(jun)落(luo)數(c...
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