Abstract: The present disclosure provides a chemiluminescent composition where the chemiluminescent substrate is 1,2-dioxetane, which contains 1,2-dioxetane and an alkyl dimethyl benzyl quaternary ammonium salt having the structure of general formula I. The present disclosure also provides an enhancing reagent and methods for enhancing chemiluminescence of 1,2-dioxetane, where the enhancing reagent contains an alkyl dimethyl benzyl quaternary ammonium salt having the structure of general formula I.

Abstract: Methods for preparing conjugates including enzyme conjugates and especially alkaline phosphatase (ALP) conjugates, and a kit are provided. The methods include: blocking an amino group on a molecule surface of a first substance to be conjugated containing an amino group and a carboxyl group (for example, an enzyme) with a carboxyl compound; adding a carbodiimide to activate the first substance to be conjugated with the amino group blocked; inactivating or removing the carbodiimide; and adding a second substance containing an amino group (for example, a substance to be labeled). Conjugates (for example, enzyme conjugates) are obtained.

Abstract: A enhancing reagent for enhancing chemiluminescence of 1,2-dioxetane compounds and a method for using the enhancing reagent to enhance the chemiluminescence are provided, in which the enhancing reagent contains an alkyl bis-quaternary ammonium salt of Formula I. A chemiluminescent composition with a 1,2-dioxetane compound as a substrate and a kit thereof are further provided, which contain a 1,2-dioxetane compound and an alkyl bis-quaternary ammonium salt of Formula I.

Abstract: The present disclosure provides a chemiluminescent composition where the chemiluminescent substrate is 1,2-dioxetane, which contains 1,2-dioxetane and an alkyl dimethyl benzyl quaternary ammonium salt having the structure of general formula I. The present disclosure also provides an enhancing reagent and methods for enhancing chemiluminescence of 1,2-dioxetane, where the enhancing reagent contains an alkyl dimethyl benzyl quaternary ammonium salt having the structure of general formula I.

Abstract: A enhancing reagent for enhancing chemiluminescence of 1,2-dioxetane compounds and a method for using the enhancing reagent to enhance chemiluminescence are provided, in which the enhancing reagent contains a multi-alkyl quaternary ammonium salt of Formula I. A chemiluminescent composition with a 1,2-dioxetane compound as a substrate and a kit thereof are further provided, which contain a 1,2-dioxetane compound and a multi-alkyl quaternary ammonium salt of Formula I.

Abstract: Methods for preparing conjugates including enzyme conjugates and especially alkaline phosphatase (ALP) conjugates, and a kit are provided. The methods include: blocking an amino group on a molecule surface of a first substance to be conjugated containing an amino group and a carboxyl group (for example, an enzyme) with a carboxyl compound; adding a carbodiimide to activate the first substance to be conjugated with the amino group blocked; inactivating or removing the carbodiimide; and adding a second substance containing an amino group (for example, a substance to be labeled). Conjugates (for example, enzyme conjugates) are obtained.

Abstract: Methods for synthesizing an ALP conjugate are provided. The methods may include activating a carboxyl group of the ALP with a carbodiimide, to generate an active ester; and adding the substance to be conjugated such that a synthetic reaction occurs between the active ester and the substance to be conjugated, to generate an ALP conjugate.

Abstract: The present disclosure relates to stabilizers for alkaline phosphatase or conjugates thereof, a process for preparing a stabilizer, and a method for stabilizing alkaline phosphatase or conjugates thereof with a stabilizer. The present disclosure also relates to a reagent of alkaline phosphatase or conjugates thereof as well as to a process for preparing the same. In another aspect, the present disclosure relates to a kit comprising the stabilizers disclosed herein and alkaline phosphatase or conjugates thereof. The stabilizer disclosed herein can stabilize alkaline phosphatase or conjugates thereof for a prolonged period of time, extending their shelf-life.