Preparation and application of miniature high-efficiency clenbuterol immuno-affinity chromatography column
A technology of immunoaffinity chromatography column, which is applied in the field of preparation of miniature high-efficiency clenbuterol immunoaffinity chromatography column, can solve the problems of poor detection sensitivity, low reliability, and low accuracy rate, and achieve strong chemical stability, Improved sensitivity and specificity
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[0054] 1. Preparation of miniature high-efficiency clenbuterol immunoaffinity chromatography column
[0055] 1) Preparation of clenbuterol-specific antibody
[0056] 1) Preparation of clenbuterol bromoacetyl ester: 50 mg of clenbuterol hydrochloride was dissolved in 500 L of dimethyl fumarate (DMF) solution and reacted with 50 L of bromoacetyl chloride at 60° C. for 30 minutes. After the reaction, 500 L of 50% methanol was added. Separation and purification by reverse column chromatography with preparative high performance liquid chromatography (C-18HPLC). The peaks shifted backward relative to the standard clenbuterol peaks were collected separately (see figure 1 ), the main component (about 20 mg) with clenbuterol ultraviolet (UV) absorption spectrum characteristics, freeze-dried and used now.
[0057] 2) Clenbuterol immunogen and coated antigen preparation. Take 50 mg of hemocyanin (KLH) (10 mL), add 1% SDS to heat denature, then add 15-30 mg of excess dithiothreitol (D...
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