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远来拾霓

铜虫 (小有名气)

[求助] 关于ELISA检测中High/Low Control 已有1人参与

新手求问:
1.ELISA试剂盒中有High Control 和 Low Control ,这两个指标的意义是什么?
酶标仪测出来这两个试剂的OD值与试剂盒所给出的OD值如何比较?

2.试剂说明书中还有两个指标,LLOQ, ULOQ:
根据解释,意思是不是如果所测标本浓度在这两个值的范围之外,那么就要重新稀释检测?
所测标本浓度(test specimens )指的是不是稀释过之后的浓度应该在0.017~2.152 ng/ml 之间?
LLOQ: The lower limit of quantitation (LLOQ) for the XXX Plus assay is 0.017 ng/mL, the lowest concentration on the standard curve that met internal criteria for accuracy and precision.
ULOQ: The upper limit of quantitation (ULOQ) for the XXX Plus assay is 2.152 ng/mL, the highest concentration on the standard curve that met internal criteria for accuracy and precision.  Diluted samples with a concentration above this limit should be retested at a higher dilution.
When test specimens yield A450 values greater than the ULOQ or less than the LLOQ, obtain a more accurate XXX concentration by re-assaying the test specimens at a different dilution so the new A450 values will be within these limits.

万分感谢~!
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biotech_zhou

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【答案】应助回帖

你用的R&D试剂盒?做出的结果最好都在标准品浓度范围之内,先做个预实验,确定稀释倍数,然后再做正式实验,不然很容易浪费试剂盒,除了 你知道你所检测的样品浓度在标准品浓度范围之内。
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2楼2014-04-16 11:02:40
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