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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)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zui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。
鱟試劑內(nèi)毒素檢測(cè)試劑盒§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(wú)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。
§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)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(guò)程參閱說(shuō)明書。
需自備物:
› 一次性無(wú)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(wú)菌,獨(dú)立包裝)
› 一次性無(wú)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
注意事項(xiàng):
¡ 所有試驗(yàn)材料都要確保無(wú)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(shuō)明書如下載不了可以或咨詢索取
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.
訂購(gòu)信息:
N207(Cat.No.) Pyrogen-Free Dilution Tubes 13 x 100mm w/o Caps
50-650U(Cat#) Kinetic Chromogenic LAL Assays 192Tests