Albumin blue 580 fluorescence assay for albumin

Albumin blue 580 fluorescence assay for albumin
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DOI:
10.1006/abio.1997.2113
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发表时间:
1997-05-15
影响因子:
2.9
通讯作者:
Wolfbeis, OS
Wolfbeis, OS
中科院分区:
生物学4区
文献类型:
--
作者:
Kessler, MA;Meinitzer, A;Wolfbeis, OS

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brators.令人惊讶的是,卵清蛋白仅给出非常弱的响应,如校准参数A(即,校准曲线的初始斜率)的0.04的低值所示。这可用于在卵清蛋白存在下特异性测定其它白蛋白。AB 580与白蛋白的结合遵循质量作用定律(9)。因此,校准曲线是非线性的,并且在高白蛋白浓度下接近饱和点。如果在校准曲线的上部平坦区域进行,则发现该测定不精确。这是通过使用过量的AB 580来防止的。
brators. Surprisingly, ovalbumin gives only a very weak response, as indicated by the low value of 0.04 for calibration parameter A (ie, the initial slope of the calibration curve). This may be exploited for the specific determination of other albumins in the presence of ovalbumin.The binding of AB 580 to albumin obeys the mass action law (9). Therefore, calibration curves are nonlinear and approach a point of saturation at high albumin concentrations. The assay was found to be unprecise if performed in the upper flat region of the calibration curve. This is prevented by use of an excess of AB 580 in