Highly sensitive chemiluminescent analysis of residual bovine serum albumin (BSA) based on a pair of specific monoclonal antibodies and peroxyoxalate-glyoxaline-PHPPA dimer chemiluminescent system in vaccines.
Enzyme-linked immunosorbent assay (ELISA), horseradish peroxidase (HRP)-catalyzed fluorescent reaction, and oxalate chemiluminescence analysis have been combined to develop a highly sensitive, simple, and rapid method for analysis of bovine serum albumin (BSA) based on a pair of specific monoclonal antibodies in vaccines. A typical "sandwich type" immunoassay was used. Reaction of 3-(4-hydroxyphenyl propionate) (PHPPA) with hydrogen peroxide-urea, catalyzed by HRP, produced fluorescence of 3-(4-hydroxyphenyl propionate) dimer, which was detected by chemiluminescence analysis with the bis(2,4,6-trichlorophenyl)oxalate (TCPO)-H(2)O(2)-glyoxaline-PHPPA dimer chemiluminescent system. This method exhibited high performance with a linear correlation between response and amount of bovine serum albumin (BSA) in the range 0.1 to 100.0 ng mL(-1) (r = 0.9988), and the detection limit was 0.03 ng mL(-1) (S/N = 3). Intra- and interassay coefficient variations were all lower than 9.0% at three concentrations (1.0, 20.0, and 80.0 ng mL(-1)). The proposed method has been used for successful analysis of the amount of residual BSA in vaccines. The results obtained compared well with those obtained by conventional colorimetric ELISA and luminol chemiluminescent ELISA.
Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, 710062, China.
Pan
P
Xue
Kui
K
Zhang
Zhujun
Z
Zhang
Yun
Y
Li
Feng
F
Liu
Yuanjie
Y
Sun
Xiaoming
X
Zhang
Chaojun
C
Song
Aihua
A
Fu
Boquan
B
Jin
Kun
K
Yang
D000818:Animals; D000911:Antibodies, Monoclonal / Q000737:chemistry*; D002417:Cattle; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D000939:Epitopes / Q000737:chemistry; D006735:Horseradish Peroxidase / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry; D007118:Immunoassay / Q000379:methods*; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods*; D010070:Oxalates / Q000737:chemistry; D012680:Sensitivity and Specificity; D012710:Serum Albumin, Bovine / Q000032:analysis / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors; D014508:Urea / Q000737:chemistry; D014612:Vaccines / Q000032:analysis / Q000737:chemistry*
D000911:Antibodies, Monoclonal; D000939:Epitopes; D010070:Oxalates; D014612:Vaccines; D012710:Serum Albumin, Bovine; C044622:peroxyoxalate; D014508:Urea; D006861:Hydrogen Peroxide; D006735:Horseradish Peroxidase