Kinetic Chromogenic LAL Assays
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產(chǎn)品英文名稱:Kinetic Chromogenic LAL Assays
產(chǎn)品中文名稱:動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒
LONZA Kinetic-QCL動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒產(chǎn)品介紹:
Kinetic-QCL?檢測(cè)是一種定量的,動(dòng)態(tài)檢測(cè)革蘭氏陰性細(xì)菌內(nèi)毒素。樣品與鱟試劑(LAL)混合,放在溫育板讀數(shù)器上,溶液變?yōu)辄S色指示測(cè)定完成。Kinetic-QCL?顯色檢測(cè)特點(diǎn)最適合用于微量注射藥物,疫苗,抗體和生物制劑檢測(cè)。相比于動(dòng)態(tài)濁度法和凝膠檢測(cè)法,Kinetic-QCL?不會(huì)干擾凝膠形成。檢測(cè)靈敏度范圍在0.005 EU/ml – 50.0 EU/ml,是所有鱟試劑(LAL)檢測(cè)方法中最靈敏的。Kinetic-QCL?允許許多樣品在96高通量孔板中同時(shí)進(jìn)行檢測(cè),節(jié)約時(shí)間和工作量。
Kinetic-QCL?(50-650U)包含8瓶LAL鱟試劑,2瓶標(biāo)準(zhǔn)內(nèi)毒素,3瓶LAL試劑水。每個(gè)試劑盒可以檢測(cè)192次。
鱟阿米巴樣細(xì)胞裂解物( Limulus Amebocyte Lysate,LAL )被用于檢測(cè)革蘭氏陰性細(xì)菌細(xì)胞壁的成分脂多糖(內(nèi)毒素)。該裂解物來源于鱟(Limulus polyphemus)的循環(huán)阿米巴樣細(xì)胞。使用 LAL 進(jìn)行內(nèi)毒素檢測(cè)來源于 Bang 的發(fā)現(xiàn), Bang 觀察發(fā)現(xiàn) Limulus polyphemus 革蘭氏陰性感染后導(dǎo)致致命性的血管內(nèi)凝聚。 Levin 和 Bang 后來發(fā)現(xiàn)這種凝結(jié)現(xiàn)象是內(nèi)毒素與鱟血中的循環(huán)阿米巴樣細(xì)胞中的一種可凝結(jié)蛋白相互作用的結(jié)果。 Levin 和 Bang 從洗滌后的阿米巴樣細(xì)胞中制備了一種裂解物,該裂解物是內(nèi)毒素的一種非常敏感的指示劑。 Solum,Young,Levin 和 Prendergast 已經(jīng)從 LAL 中純化和定性了可凝結(jié)蛋白,并且可與內(nèi)毒素發(fā)生酶促反應(yīng)。
第一個(gè)商業(yè)化 LAL 檢測(cè)分析是凝膠分析。 1977 年, FDA (生物學(xué))確定了一個(gè)裂解物的參考標(biāo)準(zhǔn)用于確定每批商業(yè)化裂解物的敏感度。他們隨后出版了詳細(xì)的實(shí)驗(yàn)室操作流程用于每批裂解物和標(biāo)準(zhǔn)品的比較分析。當(dāng)前有四種LAL法已經(jīng)獲得 FDA 的批準(zhǔn)。第一種,凝膠法,LONZA的商標(biāo)名稱為 PYROGENT,是基于內(nèi)毒素存在的條件下發(fā)生LAL凝結(jié)現(xiàn)象的事實(shí)。LONZA Kinetic-QCL動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒動(dòng)態(tài)濁度法內(nèi)毒素檢測(cè)
,LONZA商標(biāo)名稱為 PYROGENT-5000 ,是一種利用凝膠率來測(cè)定內(nèi)毒素含量的定量LAL法。第三種和第四種方法即顯色法, 美國(guó)LONZA公司商標(biāo)名稱為 QCL-1000 和 Kinetic-QCL ,采用一種在有 LAL 和內(nèi)毒素的情況下能顯黃色的顯色底物來定量 LAL ,顏色的深淺與內(nèi)毒素的濃度呈線性相關(guān)。
PyroGene 是一種根據(jù)重組因子 C 的激活建立的新型內(nèi)毒素檢測(cè)方法,并且不是取自動(dòng)物血液。
Lonza Walkersville公司已獲得 FDA 的批準(zhǔn)認(rèn)證( No : 1775 )生產(chǎn)制造 LAL內(nèi)毒素檢測(cè)鱟試劑。
§動(dòng)態(tài)濁度法內(nèi)毒素檢測(cè)檢測(cè)原理:革蘭氏陰性細(xì)菌中內(nèi)毒素激活LAL中酶原,已激活的酶催化無色底物Ac-Ile-Glu-Ala-Arg-pNA裂解為肽段和硝基苯胺(pNA)。pNA可以在溫育板分光光度計(jì)405nm讀數(shù),根據(jù)樣品反應(yīng)時(shí)間和標(biāo)準(zhǔn)物內(nèi)毒素反應(yīng)時(shí)間可以確定樣品中內(nèi)毒素濃度。
§美國(guó)LONZA Kinetic-QCL動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒結(jié)果處理:用微孔板讀數(shù)器測(cè)出每孔405nm吸光值(相應(yīng)空白孔作對(duì)照)。WinKQCLTM Software自動(dòng)生成標(biāo)準(zhǔn)物反應(yīng)時(shí)間和標(biāo)準(zhǔn)內(nèi)毒素濃度log/log線性相關(guān)。如果相關(guān)系數(shù)絕對(duì)值≥0.980,則可以建立多項(xiàng)式模型制作標(biāo)準(zhǔn)曲線,計(jì)算樣品內(nèi)毒素濃度。使用WinKQCLTM Software軟件可以線性回歸自動(dòng)計(jì)算出結(jié)果,具體計(jì)算過程參閱說明書。
LONZA 50-650U需自備物:
? 一次性無內(nèi)毒素玻璃稀釋管(13x100mm)
? 獨(dú)立包裝移液管
? 手提式自動(dòng)移液管(無菌,獨(dú)立包裝)
? 一次性無菌微孔板
? 試劑池(#25-364)
? 8道移液槍
? NaOH或HCl(0.1N),溶解于LAL試劑水用于調(diào)節(jié)PH
? 微孔板讀數(shù)器
? WinKQCLTM Software
? 計(jì)時(shí)器和試管振蕩器
美國(guó)LONZA 動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒注意事項(xiàng):
? 所有試驗(yàn)材料都要確保無內(nèi)毒素,玻璃器皿和材料可以250℃,30min滅菌處理。
? 調(diào)節(jié)樣品PH到6.0-8.0
? 塑料管不建議用于內(nèi)毒素稀釋
? 說明書如下載不了可以Email或電話咨詢索取
Kinetic Chromogenic LAL Assays 英文簡(jiǎn)述:
The Kinetic-QCL? assay is a quantitative, kinetic assay for the detection of Gram negative bacterial endotoxin. A sample is mixed with the LAL/substrate reagent, placed in an incubating plate reader, and monitored over time (via WinKQCL? Software) for the appearance of a yellow color.
It is the chromogenic nature of the Kinetic-QCL? assay that makes it the most appropriate choice for testing small volume parenterals, vaccines, antibiotics and biologicals. The Kinetic-QCL? assay is less impacted by inhibitory products which may interfere with the clotting mechanism in Turbidimetric and Gel Clot assays. With a sensitivity range of 0.005 EU/ml – 50.0 EU/ml, the Kinetic-QCL? assay is the most sensitive of the LAL assays. Multiple samples can be processed at one time in this 96-well format resulting in time savings in a busy laboratory. An incubating plate reader is required to run this assay.
美國(guó)LONZA Kinetic-QCL動(dòng)態(tài)顯色法鱟試劑(LAL)內(nèi)毒素檢測(cè)試劑盒 50-650U產(chǎn)品介紹訂購(gòu)信息:
上海華雅思創(chuàng)生物科技有限公司在中國(guó)代理銷售的內(nèi)毒素檢測(cè)試劑盒-LAL鱟試劑由世界著名公司LONZA美國(guó)子公司生產(chǎn),完全符合美國(guó)藥典USP標(biāo)準(zhǔn)。產(chǎn)品詳情盡在干細(xì)胞搜網(wǎng)。
LONZA??? 50-506U??? Endotoxin Detection??? EA??? INHIBITION CONTROL 5 VIALS/KIT
LONZA??? 50-647U??? Endotoxin Detection??? EA??? QCL-1000 120 Test Kit內(nèi)毒素檢測(cè)試劑盒
LONZA??? 50-648U??? Endotoxin Detection??? EA??? QCL-1000 300 Test Kit內(nèi)毒素檢測(cè)試劑盒
LONZA??? 50-650H??? Endotoxin Detection??? EA??? Kinetic-QCL Bulk Kit 2400 Test Kit內(nèi)毒素檢測(cè)試劑盒
LONZA??? 50-650NV??? Endotoxin Detection??? EA??? Kinetic-QCL Bulk Kit 2040 Test Kit
LONZA??? 50-650U??? Endotoxin Detection??? EA??? Kinetic-QCL 192 Test Kit內(nèi)毒素檢測(cè)試劑盒
LONZA??? 50-658NV??? Endotoxin Detection??? EA??? Pyrogene Bulk Kit 2880 Test Kit
LONZA??? 50-658U??? Endotoxin Detection??? EA??? PyroGene 192 Test Kit內(nèi)毒素檢測(cè)試劑盒
LONZA??? N183-06??? Endotoxin Detection??? KT??? PYROGENT 80 Tests 0.06 EU/ml Sensitivity
LONZA??? N183-125??? Endotoxin Detection??? KT??? PYROGENT 80 Tests 0.125 EU/ml Sens
LONZA??? N184-25??? Endotoxin Detection??? KT??? PYROGENT 250 Tests 0.25 EU/ml Sens
LONZA??? N186??? Endotoxin Detection??? KT??? Endotoxin, E.coli O55:B5
LONZA??? N188??? Endotoxin Detection??? KT??? Pyrosperse Kit Dispersing Reagent
LONZA??? N189-06??? Endotoxin Detection??? KT??? PYROGENT 25 Single Tests 0.06 EU/ml Sens
LONZA??? N189-125??? Endotoxin Detection??? KT??? PYROGENT 25 Single Tests 0.125 EU/ml Sen
LONZA??? N189-25??? Endotoxin Detection??? KT??? PYROGENT 25 Single Tests 0.25 EU/ml Sens
LONZA??? N190??? Endotoxin Detection??? KT??? Beta-G-Blocker Kit
LONZA??? N194-03??? Endotoxin Detection??? KT??? PYROGENT 250 Tests 0.03 EU/ml Sens
LONZA??? N194-06??? Endotoxin Detection??? KT??? PYROGENT 250 Tests 0.06 EU/ml Sens
LONZA??? N194-125??? Endotoxin Detection??? KT??? PYROGENT 250 Tests 0.125 EU/ml Sens
LONZA??? N201??? Endotoxin Detection??? L??? Pyrogen-Free Test Tubes 10x75mm w/Caps
LONZA??? N205??? Endotoxin Detection??? PKG??? Pyrogen-Free Test Tubes 10x75mm w/oCap
LONZA??? N207??? Endotoxin Detection??? PKG??? Pyrogen-Free Dilution 13x100mm w/oCaps
LONZA??? N283-06??? Endotoxin Detection??? KT??? PYROGENT Plus 64 Tests 0.06 EU/ml Sens
LONZA??? N283-125??? Endotoxin Detection??? KT??? PYROGENT Plus 64 Tests 0.125 EU/ml Sens
LONZA??? N284-25??? Endotoxin Detection??? KT??? PYROGENT Plus 200 Tests 0.25 EU/ml Sens
LONZA??? N288-25??? Endotoxin Detection??? KT??? PYROGENT Plus 4000 Tests 0.25 EU/ml Sens
LONZA??? N289-06??? Endotoxin Detection??? KT??? PYROGENT Plus 24 Single Tests 0.06 EU/ml
LONZA??? N289-125??? Endotoxin Detection??? KT??? PYROGENT Plus 24 Single Tests 0.125EU/ml
LONZA??? N289-25??? Endotoxin Detection??? KT??? PYROGENT Plus 24 Single Tests 0.25 EU/ml
LONZA??? N294-03??? Endotoxin Detection??? KT??? PYROGENT Plus 200 Tests 0.03 EU/ml Sens
LONZA??? N294-06??? Endotoxin Detection??? KT??? PYROGENT Plus 200 Tests 0.06 EU/ml Sens
LONZA??? N294-125??? Endotoxin Detection??? KT??? PYROGENT Plus 200 Tests 0.125 EU/ml Sens
LONZA??? N383??? Endotoxin Detection??? KT??? PYROGENT-5000 100 Test Kit
LONZA??? N384??? Endotoxin Detection??? KT??? PYROGENT-5000 200 Test Kit
LONZA??? N494-03??? Endotoxin Detection??? KT??? PYROGENT Plus 4000 Tests 0.03 EU/ml Sens
LONZA??? N494-06??? Endotoxin Detection??? KT??? PYROGENT Plus 4000 Tests 0.06 EU/ml Sens
LONZA??? N494-125??? Endotoxin Detection??? KT??? PYROGENT Plus 4000 Tests 0.125 EU/ml Sen
LONZA??? N588??? Endotoxin Detection??? KT??? Pyrogent-5000 Bulk Kit 2250 Test Kit
LONZA??? N594-03??? Endotoxin Detection??? KT??? PYROGENT Ultra 200 Tests 0.03 EU/ml Sens
LONZA??? N594-06??? Endotoxin Detection??? KT??? PYROGENT Ultra 200 Tests 0.06 EU/ml Sens
LONZA??? N594-125??? Endotoxin Detection??? KT??? PYROGENT Ultra 200 Tests 0.125 EU/ml Sen
LONZA??? N688??? Endotoxin Detection??? KT??? Pyrogent-5000 Bulk Kit 4500 Test Kit
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