人妻体体内射精一区二区_欧美性大战久久久久久_GOGO人体大胆瓣开下部l_国产日韩亚洲大尺度高清

紫外線殺菌燈在全自動核酸提取儀中的應用

日期(qi):2020-07-10 12:19 瀏覽:3298

#抗擊疫情,我們在行動#?據國家及各地衛健委每日信息發布統計,截止2020.4.5日,國內累計確診新型冠狀感染肺炎82930例,累計治愈77237例,現有確診2355例,目前已有316市實現現有確診病例清零,國家衛健委聯防聯控辦公室表示:我國本輪疫情流行高峰已經過去,新增發病數在持續下降,疫情總體保持在較低水平,外防輸入已成為我國疫情防控的重中之重。面對新冠肺炎疫情,在我國及去全球現行的醫療技術體系之下,在病毒樣本提取中,核酸提取檢測與CT檢測成為COVID-19冠狀病毒的重要檢測手段。全自動核酸提取儀是應用配套的核酸提取試劑來使得樣本核酸提取工作自動完成的儀器,是每個實驗室與生物分子相關的分離純化工作必不可少的儀器,核酸提取儀分為兩類,一類是大型自動化實驗室實驗儀器,一般稱為自動液體工作站;另一類是小型自動核酸提取儀,利用封裝好的配套試劑自動完成提取純化過程。

1587369387(1).jpg


以(yi)(yi)全自(zi)動核(he)酸(suan)(suan)提取儀(yi)的(de)(de)(de)工作(zuo)原理為例,在(zai)自(zi)動核(he)酸(suan)(suan)提取系統工作(zuo)時,會(hui)(hui)有氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)污染(ran)產(chan)生(sheng)。世界衛生(sheng)組織報告曾指出,病(bing)毒(du)或細菌(jun)可(ke)(ke)以(yi)(yi)通(tong)過氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)經長距離傳(chuan)播(bo)而在(zai)短期內(nei)導致大面積感染(ran),回看過往(wang),業內(nei)人士指出研究人員發現SARS病(bing)毒(du)通(tong)過空氣(qi)(qi)氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)路(lu)徑傳(chuan)播(bo)有明確的(de)(de)(de)證據(ju)。其(qi)次,H5N1禽流感病(bing)毒(du)也存在(zai)通(tong)過氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)路(lu)徑傳(chuan)播(bo)的(de)(de)(de)證據(ju)。鑒于(yu)新(xin)冠(guan)病(bing)毒(du)與SARS具有80%的(de)(de)(de)基(ji)因序列相似(si)度,推測(ce)新(xin)冠(guan)病(bing)毒(du)與SARS的(de)(de)(de)物理性質(zhi)可(ke)(ke)能類似(si),不排除通(tong)過氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)傳(chuan)播(bo)的(de)(de)(de)可(ke)(ke)能。在(zai)COVID-19冠(guan)狀病(bing)毒(du)核(he)酸(suan)(suan)的(de)(de)(de)檢測(ce)當中,存在(zai)于(yu)實(shi)驗(yan)室桌(zhuo)面、儀(yi)器(qi)、耗材以(yi)(yi)及(ji)空氣(qi)(qi)中的(de)(de)(de)DNA污染(ran),對于(yu)檢測(ce)實(shi)驗(yan)會(hui)(hui)產(chan)生(sheng)嚴(yan)(yan)重的(de)(de)(de)干擾(rao),尤其(qi)是氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)攜(xie)(xie)帶(dai)(dai)的(de)(de)(de)DNA分子(zi)(一個(ge)氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)能攜(xie)(xie)帶(dai)(dai)上萬(wan)個(ge)DNA),在(zai)空氣(qi)(qi)中漂浮,難(nan)以(yi)(yi)消除。PCR擴增過程中會(hui)(hui)產(chan)生(sheng)DNA/RNA氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)污染(ran)的(de)(de)(de)問題。極其(qi)微(wei)量(liang)的(de)(de)(de)氣(qi)(qi)溶(rong)(rong)膠(jiao)(jiao)(jiao)污染(ran)即可(ke)(ke)造成(cheng)假陽性的(de)(de)(de)結(jie)果,進而可(ke)(ke)能引起(qi)整個(ge)PCR實(shi)驗(yan)室的(de)(de)(de)污染(ran),造成(cheng)高概率的(de)(de)(de)新(xin)冠(guan)肺炎核(he)酸(suan)(suan)檢測(ce)假陰(yin)性事(shi)件,嚴(yan)(yan)重的(de)(de)(de)甚至要關(guan)閉(bi)實(shi)驗(yan)室。

1587369645(1)_副本.jpg

?

目前治(zhi)理氣溶(rong)膠污染(ran)的(de)(de)常(chang)(chang)規(gui)方法有(you):酒精擦拭、紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)照射、高(gao)壓(ya)變性。祛除DNA污染(ran)可(ke)以選擇紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈殺菌(jun)(jun),相對過(guo)濾吸附法,紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)照射屬(shu)于更(geng)高(gao)效的(de)(de)消殺方式,常(chang)(chang)規(gui)紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)照射建(jian)議(yi)根據容器體(ti)積,或者空間體(ti)積,來(lai)選擇合適(shi)的(de)(de)紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈。值得注(zhu)意的(de)(de)是(shi),要(yao)祛除DNA污染(ran)而不(bu)是(shi)僅(jin)(jin)僅(jin)(jin)滅(mie)菌(jun)(jun)的(de)(de)話,常(chang)(chang)規(gui)紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)照射建(jian)議(yi)應延長至2小時,才能有(you)效滅(mie)殺空間內(nei)的(de)(de)病毒性氣溶(rong)膠及細菌(jun)(jun)。如杭州某企業(ye)研(yan)制(zhi)(zhi)的(de)(de)全自動核酸提取(qu)儀(yi)(yi),著重在其儀(yi)(yi)器內(nei)部(bu)配置(zhi)(zhi)了一(yi)款(kuan)高(gao)效的(de)(de)紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈,利用(yong)(yong)UV滅(mie)菌(jun)(jun)防污染(ran)控制(zhi)(zhi),紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈工(gong)作(zuo)時配合一(yi)次性耗材,進一(yi)步嚴格(ge)控制(zhi)(zhi)孔間污染(ran)及批次間污染(ran),有(you)效預防交叉污染(ran)。該紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈由(you)朗普科技研(yan)發,產品型號為DC12V/24V的(de)(de)低壓(ya)安全直流(liu)紫(zi)(zi)(zi)外(wai)(wai)(wai)線(xian)(xian)(xian)燈,具(ju)有(you)抗電(dian)磁干擾(rao)、啟動沖擊電(dian)流(liu)小、頻繁開(kai)關不(bu)易黑頭、光(guang)衰(shuai)小、故障率低等優點,非常(chang)(chang)適(shi)用(yong)(yong)于核算提取(qu)儀(yi)(yi)中做好良好的(de)(de)滅(mie)菌(jun)(jun)裝置(zhi)(zhi)。

1587369405(1).jpg?

DC12V/24V低(di)壓直(zhi)流紫(zi)(zi)外線燈(deng)由朗(lang)普科技自主研發(fa),根(gen)據(ju)當前疫情(qing)防控的形勢及(ji)接下(xia)來(lai)對于(yu)生(sheng)物安全防護(hu)及(ji)空間消(xiao)毒(du)(du)防護(hu)措施的需(xu)要,有(you)效適(shi)用(yong)(yong)(yong)于(yu)精密消(xiao)毒(du)(du)檢測儀(yi)(yi)器、水(shui)質分析儀(yi)(yi)器、血液病毒(du)(du)滅活(huo)檢測儀(yi)(yi)、智能機(ji)器人及(ji)售賣機(ji)、快遞(di)外賣餐箱等領(ling)域。DC12V/24V低(di)壓直(zhi)流紫(zi)(zi)外線燈(deng)擁(yong)有(you)朗(lang)普紫(zi)(zi)外線快速(su)選型(xing)(xing)發(fa)明專(zhuan)利(li)(li),單(dan)燈(deng)紫(zi)(zi)外線殺菌(jun)強度高,殺菌(jun)用(yong)(yong)(yong)時短(duan);同時獲得國家(jia)實(shi)用(yong)(yong)(yong)新型(xing)(xing)專(zhuan)利(li)(li)證(zheng)書及(ji)紫(zi)(zi)外線專(zhuan)用(yong)(yong)(yong)鎮流CE認證(zheng)及(ji)殺菌(jun)燈(deng)CE、ROHS雙認證(zheng);通過廣東(dong)省微生(sheng)物分析測驗中心分析報(bao)告,使用(yong)(yong)(yong)DC12V/24V低(di)壓直(zhi)流紫(zi)(zi)外線燈(deng)對特定(ding)檢測區域進行照射時,照射區域內大(da)(da)腸桿(gan)菌(jun)滅殺率(lv)大(da)(da)于(yu)99%,霉菌(jun)滅殺率(lv)大(da)(da)于(yu)95%(朗(lang)普實(shi)驗測試數據(ju),僅(jin)供(gong)參(can)考(kao)),符合(he)國家(jia)消(xiao)毒(du)(du)技術(shu)(shu)規范。朗(lang)普科技專(zhuan)注殺菌(jun)領(ling)域十一年,只(zhi)做有(you)效殺菌(jun)!我們(men)將為(wei)您提供(gong)技術(shu)(shu)支持,專(zhuan)業選型(xing)(xing)。抗擊疫情(qing),我們(men)在行動!

本文(wen)參(can)考(kao)出處:

1.國家衛健委關于印發新型冠狀病毒肺炎(yan)(試行第五、六、七(qi)版)的通(tong)知;

2.參考文獻(xian):UV irradiation and autoclave treatment for elimination of contaminating DNA from laboratory consumables. 《Forensic Science International Genetics》, 2010,4(2) :89