凈化工(gong)(gong)作臺(tai)是一種局(ju)部(bu)層(ceng)(ceng)流(liu)裝置,能在局(ju)部(bu)形(xing)成高潔度的(de)工(gong)(gong)作環境。它(ta)由(you)工(gong)(gong)作臺(tai)、過濾器(qi)、風(feng)機、靜壓(ya)箱和(he)支撐體(ti)等組成,采(cai)用過濾空(kong)氣(qi)使(shi)工(gong)(gong)作臺(tai)操(cao)作區達到凈化除(chu)菌(jun)的(de)目的(de)。室內(nei)空(kong)氣(qi)經預過濾器(qi)和(he)高效過濾除(chu)塵(chen)后以垂直或水平層(ceng)(ceng)流(liu)狀(zhuang)態通過工(gong)(gong)作臺(tai)的(de)操(cao)作區,由(you)于空(kong)氣(qi)沒有(you)渦(wo)流(liu),所以,任何一點(dian)灰(hui)塵(chen)或附著在灰(hui)塵(chen)上的(de)雜菌(jun)都能被排(pai)除(chu),不易向別(bie)處擴散和(he)轉(zhuan)移。因此,可使(shi)操(cao)作區保持無菌(jun)狀(zhuang)態。
與無茵室室和注射箱是比較,實用油煙凈化器工作任務上臺具工作任務上標準好、操控便、無茵室視覺作用不靠譜、無酒精消毒中和劑對身休影響、擠占范圍小且可手機端等益處。若果放置在無茵室別墅地下室實用,無茵室視覺作用更強。其優點和缺點是的價格貴,預油煙凈化器器和優質油煙凈化器器還可以不定期清晰和撤換。 直流高壓水蒸氣過濾除菌鍋高(gao)(gao)壓(ya)蒸(zheng)汽(qi)滅菌(jun)鍋是一(yi)(yi)個密閉的(de)(de)、可(ke)以(yi)耐受一(yi)(yi)定壓(ya)力(li)的(de)(de)雙層金屬鍋。鍋底或(huo)(huo)夾層內盛水(shui),當(dang)水(shui)在鍋內沸騰時由于蒸(zheng)汽(qi)不能逸出,使鍋內壓(ya)力(li)逐漸升(sheng)高(gao)(gao),水(shui)的(de)(de)沸點和溫(wen)度可(ke)隨(sui)之升(sheng)高(gao)(gao),從而達到高(gao)(gao)溫(wen)滅菌(jun)的(de)(de)目的(de)(de)。一(yi)(yi)般在0.11MPa的(de)(de)壓(ya)力(li)下,121℃滅菌(jun)20~30min,包括(kuo)芽孢(bao)在內的(de)(de)所(suo)有微生(sheng)物(wu)均可(ke)被殺死。如(ru)果(guo)滅菌(jun)物(wu)品體積(ji)較大,蒸(zheng)汽(qi)穿透困難,可(ke)以(yi)適當(dang)提高(gao)(gao)蒸(zheng)汽(qi)壓(ya)力(li)或(huo)(huo)延(yan)長滅菌(jun)時間。
直流電消毒鍋有水平、立試、手攜式式等很多不一樣型,在微生物學學學實驗設計室,極其常常用的是手攜式式和立試直流電水蒸氣消毒鍋。和臥式儲罐消毒鍋差距,直流電消毒鍋的優勢之處是消毒所須的時長短、省清潔燃料、消毒恢復原狀等。其缺欠是房價值錢,消毒功率較小。 塑造箱培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)是培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)微(wei)生物(wu)(wu)的(de)(de)專用設(she)備(bei)。制(zhi)熱式培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)是由(you)電爐絲和溫(wen)度(du)控制(zhi)儀合成的(de)(de)固定體積的(de)(de)恒溫(wen)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)裝置,大(da)小規格(ge)不一。微(wei)生物(wu)(wu)實驗(yan)室(shi)常用的(de)(de)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)工作容積有(you)(you)450×450×350mm3或(huo)650×500×500mm3,適用于室(shi)溫(wen)至(zhi)60℃之間(jian)的(de)(de)各類微(wei)生物(wu)(wu)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)。目前(qian),隨著科學水平的(de)(de)發展(zhan),培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)設(she)備(bei)的(de)(de)完善程(cheng)度(du)和價格(ge)有(you)(you)很大(da)差(cha)別。有(you)(you)各種結構合理、功能齊全的(de)(de)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang),如(ru)恒溫(wen)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)、恒溫(wen)恒濕培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)、低溫(wen)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)、微(wei)生物(wu)(wu)多用培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)和二氧化碳(tan)培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)箱(xiang)等。有(you)(you)的(de)(de)用計算機(ji)控制(zhi),可(ke)選(xuan)擇多條時間(jian)線變換溫(wen)差(cha),從而(er)克服了(le)環境(jing)溫(wen)度(du)的(de)(de)影響(xiang),一年四季均能達到培(pei)(pei)(pei)(pei)(pei)(pei)養(yang)(yang)(yang)要(yao)求(qiu)的(de)(de)溫(wen)度(du)。
微生物多用(yong)培養箱是集(ji)加熱(re)、制冷和振蕩(dang)于一體的微生物液體發酵裝置(zhi)。工(gong)作(zuo)(zuo)室的溫(wen)度在(zai)15~50℃范(fan)(fan)圍內(nei)任意選定,選定后經溫(wen)控(kong)(kong)儀自動控(kong)(kong)制,保持工(gong)作(zuo)(zuo)室內(nei)恒溫(wen)。同(tong)時設有可控(kong)(kong)硅調(diao)速系統,振蕩(dang)機(ji)轉(zhuan)速可在(zai)1~220rpm范(fan)(fan)圍內(nei)任意調(diao)控(kong)(kong)。
常溫、恒溫干燥箱干(gan)(gan)燥(zao)箱(xiang)(xiang)(xiang)是用于(yu)除去(qu)潮(chao)濕物(wu)料內及器(qi)皿內外(wai)水分或其它揮發性溶液(ye)的(de)(de)設備。類型(xing)很多,有(you)(you)(you)箱(xiang)(xiang)(xiang)式(shi)、滾筒(tong)式(shi)、套間式(shi)、回(hui)轉式(shi)等。微(wei)生物(wu)學實驗室(shi)多用箱(xiang)(xiang)(xiang)式(shi)干(gan)(gan)燥(zao)箱(xiang)(xiang)(xiang),大小規格不一。工(gong)作(zuo)室(shi)內配有(you)(you)(you)可(ke)活動的(de)(de)鐵(tie)絲(si)網板,便于(yu)放置被干(gan)(gan)燥(zao)的(de)(de)物(wu)品。制(zhi)熱升溫(wen)(wen)(wen)式(shi)干(gan)(gan)燥(zao)箱(xiang)(xiang)(xiang)也(ye)是有(you)(you)(you)電(dian)(dian)爐絲(si)和溫(wen)(wen)(wen)度控(kong)(kong)制(zhi)儀組成(cheng),可(ke)調節溫(wen)(wen)(wen)度從室(shi)溫(wen)(wen)(wen)至300℃任意選擇。有(you)(you)(you)的(de)(de)干(gan)(gan)燥(zao)箱(xiang)(xiang)(xiang)采用導(dao)電(dian)(dian)溫(wen)(wen)(wen)度計為敏(min)感元件(jian),配合晶體(ti)管和繼電(dian)(dian)器(qi)組成(cheng)自(zi)動控(kong)(kong)制(zhi)系(xi)統,克服了金屬(shu)管型(xing)熱膨脹控(kong)(kong)制(zhi)的(de)(de)缺(que)點(dian)。此(ci)外(wai),還有(you)(you)(you)真空(kong)(kong)干(gan)(gan)燥(zao)箱(xiang)(xiang)(xiang)(配有(you)(you)(you)真空(kong)(kong)泵和氣壓表(biao)),可(ke)在常壓或減(jian)壓下操作(zuo)。
搖床
搖(yao)(yao)床又稱搖(yao)(yao)瓶機(ji),它是培(pei)養好氣(qi)性(xing)微生(sheng)(sheng)物(wu)的(de)小型試(shi)驗設備或(huo)作為(wei)種子擴大培(pei)養之(zhi)(zhi)用(yong)(yong),常用(yong)(yong)的(de)搖(yao)(yao)床有(you)往復(fu)式(shi)和(he)旋(xuan)轉式(shi)兩(liang)種。往復(fu)式(shi)搖(yao)(yao)床的(de)往復(fu)頻率(lv)一(yi)(yi)般(ban)在(zai)80~140次/min,沖程(cheng)一(yi)(yi)般(ban)為(wei)5~14cm,如頻率(lv)過快、沖程(cheng)過大或(huo)瓶內液體裝量過多,在(zai)搖(yao)(yao)動時液體會濺到包扎瓶口的(de)紗布或(huo)棉(mian)塞上,導致雜菌(jun)污染,特別是啟動時更容易發生(sheng)(sheng)這種情況。旋(xuan)轉式(shi)搖(yao)(yao)床的(de)偏心距一(yi)(yi)般(ban)在(zai)3~6cm之(zhi)(zhi)間(jian),旋(xuan)轉次數為(wei)60~300rpm。
放在搖(yao)(yao)床上(shang)的(de)(de)(de)培(pei)養瓶(ping)(ping)(一般(ban)為三角瓶(ping)(ping))中的(de)(de)(de)發酵液(ye)所需要的(de)(de)(de)氧是由(you)空氣經瓶(ping)(ping)口包扎(zha)的(de)(de)(de)紗布(bu)(一般(ban)8層)或棉塞通入的(de)(de)(de),所以氧的(de)(de)(de)傳遞與(yu)瓶(ping)(ping)口的(de)(de)(de)大小、瓶(ping)(ping)口的(de)(de)(de)幾何形狀、棉塞或紗布(bu)的(de)(de)(de)厚度和密度有關。在通常情況下,搖(yao)(yao)瓶(ping)(ping)的(de)(de)(de)氧吸收系(xi)數取(qu)決于搖(yao)(yao)床的(de)(de)(de)特性和三角瓶(ping)(ping)的(de)(de)(de)裝樣(yang)量(liang)。
反復移動式搖床是利用率曲柄作用發揮搖床作反復移動移動,車身為鋼制或廚衛電器的長方框子,有一家層至四層木餐盤,木餐盤有著小圓孔備放激發瓶,孔中凹進一家角形形橡膠,用為規定激發瓶并以減少瓶的震動問題,齒輪傳動組織機構尋常用二級考試輸送帶輪減慢速度,需要更改控速輸送帶輪可增加反復移動頻繁 。剪力輪上會開不一樣的的剪力孔,以便調整剪力距。反復移動式搖床的頻繁 和剪力距的的大小對氧的吸納有明顯的的會影響。 選轉式搖床是運用選轉的軸力軸使托板跳動,托板一層或雙層,可以用在不銹剛板、鋁合金板或實木板研制。在這幾個軸力軸上用有螺柱可以調整節上上下下,使托板實現水平面。在這種搖床成分比較復雜,造較貴。其優勢:是氧的分享較高、馬力耗損小、培養出來基不用濺到瓶口的繃帶上。 電子顯微鏡 微生物發酵制品菌種工程自身肺部結節影,必需代入體視體視顯微鏡可以觀查了解她們的自身狀態和細胞系結構特征。于是,在微生物發酵制品菌種工程學的哪項研究分析中,體視體視顯微鏡就擁有不容替代的方式。顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)的(de)種類很多,根據其(qi)結構,可以(yi)分(fen)為(wei)光(guang)(guang)學(xue)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)和非(fei)光(guang)(guang)學(xue)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)兩大類。光(guang)(guang)學(xue)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)又可分(fen)為(wei)單(dan)(dan)(dan)式(shi)(shi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)和復式(shi)(shi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)。最簡(jian)單(dan)(dan)(dan)的(de)單(dan)(dan)(dan)式(shi)(shi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)即放大鏡(jing)(jing)(jing)(jing)(放大倍(bei)數常(chang)在10倍(bei)左(zuo)右),構造復雜(za)的(de)單(dan)(dan)(dan)式(shi)(shi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)為(wei)解剖顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)(放大倍(bei)數在200左(zuo)右)。在微(wei)(wei)(wei)(wei)(wei)生物學(xue)的(de)研(yan)究中,主要是復式(shi)(shi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)。其(qi)中以(yi)普通光(guang)(guang)學(xue)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)(明視野(ye)(ye)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing))最為(wei)常(chang)用。此外,還有暗視野(ye)(ye)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)、相差顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)、熒光(guang)(guang)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)、偏光(guang)(guang)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)、紫(zi)外光(guang)(guang)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)和倒置顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)等。非(fei)光(guang)(guang)學(xue)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)為(wei)電子(zi)顯(xian)(xian)(xian)(xian)(xian)微(wei)(wei)(wei)(wei)(wei)鏡(jing)(jing)(jing)(jing)。
疫苗接種箱接種(zhong)(zhong)(zhong)(zhong)箱(xiang)(xiang)分為固體(ti)(ti)(ti)菌(jun)種(zhong)(zhong)(zhong)(zhong)接種(zhong)(zhong)(zhong)(zhong)箱(xiang)(xiang)和液體(ti)(ti)(ti)菌(jun)種(zhong)(zhong)(zhong)(zhong)接種(zhong)(zhong)(zhong)(zhong)箱(xiang)(xiang)兩(liang)(liang)種(zhong)(zhong)(zhong)(zhong)。固體(ti)(ti)(ti)菌(jun)種(zhong)(zhong)(zhong)(zhong)接種(zhong)(zhong)(zhong)(zhong)箱(xiang)(xiang)是(shi)一(yi)個用(yong)木(mu)料和玻(bo)璃(li)制成或(huo)由有(you)(you)機(ji)玻(bo)璃(li)焊接而成的(de)(de)密閉(bi)小箱(xiang)(xiang)。又分為雙(shuang)人(ren)和單人(ren)操(cao)作箱(xiang)(xiang)。箱(xiang)(xiang)體(ti)(ti)(ti)可大可小,一(yi)般(ban)箱(xiang)(xiang)體(ti)(ti)(ti)長約(yue)(yue)143cm,寬86cm,總高154cm,支架76cm。箱(xiang)(xiang)的(de)(de)上(shang)部(bu)(bu)左右兩(liang)(liang)側(ce)各(ge)裝有(you)(you)兩(liang)(liang)扇能啟閉(bi)的(de)(de)玻(bo)璃(li)推拉門,方便菌(jun)種(zhong)(zhong)(zhong)(zhong)進(jin)出。窗的(de)(de)下部(bu)(bu)分別設有(you)(you)兩(liang)(liang)個直徑(jing)約(yue)(yue)13cm的(de)(de)圓洞,兩(liang)(liang)洞的(de)(de)中心距離(li)為52cm(同肩寬),洞口裝有(you)(you)帶松緊帶的(de)(de)袖(xiu)套,以防雙(shuang)手在(zai)箱(xiang)(xiang)內(nei)操(cao)作時,外界空氣(qi)進(jin)入(ru)(ru)箱(xiang)(xiang)內(nei)造成污染。操(cao)作時兩(liang)(liang)人(ren)相(xiang)對而坐,雙(shuang)手通過袖(xiu)套伸入(ru)(ru)箱(xiang)(xiang)內(nei)。箱(xiang)(xiang)兩(liang)(liang)側(ce)最好也裝上(shang)玻(bo)璃(li),箱(xiang)(xiang)頂部(bu)(bu)為木(mu)板或(huo)玻(bo)璃(li)。箱(xiang)(xiang)內(nei)頂部(bu)(bu)裝有(you)(you)紫外線殺菌(jun)燈(deng)和照(zhao)明用(yong)日光燈(deng)各(ge)一(yi)支。箱(xiang)(xiang)體(ti)(ti)(ti)安(an)裝木(mu)板或(huo)玻(bo)璃(li)均可,但(dan)要注意(yi)密封。
液體(ti)(ti)菌(jun)(jun)(jun)種(zhong)接(jie)種(zhong)箱(xiang)(xiang)是專(zhuan)為移接(jie)液體(ti)(ti)菌(jun)(jun)(jun)種(zhong)而設(she)計的。比固(gu)體(ti)(ti)菌(jun)(jun)(jun)種(zhong)箱(xiang)(xiang)窄長(chang),單側兩(liang)人操(cao)作。內設(she)軌道和紫外線燈,箱(xiang)(xiang)兩(liang)端開有高25cm,寬10cm的長(chang)方(fang)形出口,方(fang)便菌(jun)(jun)(jun)種(zhong)進出,洞口設(she)有小推門。進出口下(xia)處設(she)蒸汽源,接(jie)種(zhong)時用蒸汽封(feng)住(zhu)進出口,以(yi)防雜(za)菌(jun)(jun)(jun)進入箱(xiang)(xiang)內。箱(xiang)(xiang)背面設(she)有液體(ti)(ti)菌(jun)(jun)(jun)種(zhong)移接(jie)管能進入的小孔。
接種箱(xiang)滅(mie)菌(jun)(jun)時(shi),用紫(zi)外(wai)(wai)線(xian)照射(she)30min。如果(guo)沒(mei)有(you)紫(zi)外(wai)(wai)線(xian)燈,可(ke)用甲醛(quan)和(he)高錳(meng)酸(suan)鉀(甲醛(quan)10~14mL/m3+高錳(meng)酸(suan)鉀5~7g/m3空間)熏蒸30min以上(shang)。使用時(shi),先將所(suo)需物(wu)品(pin)和(he)工具(ju)放入(ru)接種箱(xiang)內,然后進(jin)(jin)行(xing)藥劑熏蒸和(he)紫(zi)外(wai)(wai)線(xian)滅(mie)菌(jun)(jun),再按無菌(jun)(jun)操(cao)作(zuo)進(jin)(jin)行(xing)接種。接種箱(xiang)的結構簡單(dan),造價低(di)廉(lian),易消毒滅(mie)菌(jun)(jun),操(cao)作(zuo)方(fang)便,而且人在(zai)箱(xiang)外(wai)(wai)操(cao)作(zuo),氣溫較高時(shi)也(ye)能作(zuo)業。缺點是(shi)進(jin)(jin)出培養基費工費時(shi),每次接種前都需要進(jin)(jin)行(xing)滅(mie)菌(jun)(jun)。
保鮮柜 微生物實驗室的冰箱主要有兩種:普通冰箱和低溫冷凍冰箱。普通冰箱一般都具有兩個柜子,即鮮藏柜和冷藏柜,溫度分別為4℃和-20℃;低溫冷凍冰箱溫度一般控制在-40~-80℃。它們都可以用于微生物菌種保藏。鮮藏柜常用于保存斜面菌種,保藏時間在3個月左右。超過3個月,斜面就會變干,因此需要轉接菌種。如果要長時間保存菌種,則需要經過處理后,貯藏于普通冰箱的冷藏柜或低溫冷凍冰箱中,它們的保藏時間較長,一般都在1年以上。