The invention discloses an
immunoturbidimetry apolipoprotein B single
reagent with stable liquid and freezing resistance. The single
reagent comprises 20-200mmol / L
Buffer solution with a PH value
ranging from 7.0 to 8.0 , 40.0-200.0 g / L of ApoB
antibody subjected to
antibody treatment liquid pre-
precipitation and centrifugal treatment, 5.0-50.0 g / L of
polyethylene glycol 2,000-10,000, 20.0-200.0 g / L of
glycerol, 0.5-5.0 g / L of surfactant, and 0.2-2.0 g / L of
preservative, wherein the
antibody treating fluid comprises 20-200 mmol / L of
buffer solution with the pH value
ranging from 7.0 to 8.0, 30.0-80.0 g / L of
polyethylene glycol 2,000 to 10,000, 5.0-30.0 g / L of
magnesium salt and 0.2-2.0 g / L of
preservative. Under low temperature conditions, under the promotion action of
polyethylene glycoland
magnesium salt with a certain concentration,
protein easy to precipitate in the antibody is precipitated in an accelerated mode, then high-speed
centrifugation is conducted, precipitate is removed, stability is improved when the antibody and the non-specific
polyethylene glycol sensitizer coexist in the single
reagent,
protein precipitation after the reagent is frozen is prevented, and therebyperformance of the reagent is prevented from being affected.