Abstract: The invention relates to a method for analysis by capillary electrophoresis of glycated haemoglobins comprising at least one globin chain comprising a glucose residue bound to the amino acid in the N-terminal position, contained in a biological sample, said method comprising using a buffer composition comprising at least one compound which is capable of specifically complexing glucose residues of one or several glycated haemoglobin(s) and of providing said glycated haemoglobin(s) with several negative electric charges at an alkaline pH. By way of example, this compound may be 3,4- or 3,5-dicarboxyphenylboronic acid, preferably 3,5-dicarboxyphenylboronic acid. Said method may in particular be used to separate and assay haemoglobin HbA1c present in a biological sample optionally comprising other haemoglobins, in particular other minor fractions.

Abstract: The invention relates to a method for analysis by capillary electrophoresis of glycated haemoglobins comprising at least one globin chain comprising a glucose residue bound to the amino acid in the N-terminal position, contained in a biological sample, said method comprising using a buffer composition comprising at least one compound which is capable of specifically complexing glucose residues of one or several glycated haemoglobin(s) and of providing said glycated haemoglobin(s) with several negative electric charges at an alkaline pH. By way of example, this compound may be 3,4- or 3,5-dicarboxyphenylboronic acid, preferably 3,5-dicarboxyphenylboronic acid. Said method may in particular be used to separate and assay haemoglobin HbA1c present in a biological sample optionally comprising other haemoglobins, in particular other minor fractions.

Abstract: The invention relates to a method for analysis by capillary electrophoresis of glycated haemoglobins comprising at least one globin chain comprising a glucose residue bound to the amino acid in the N-terminal position, contained in a biological sample, said method comprising using a buffer composition comprising at least one compound which is capable of specifically complexing glucose residues of one or several glycated haemoglobin(s) and of providing said glycated haemoglobin(s)with several negative electric charges at an alkaline pH. By way of example this compound may be 3,4- or 3,5-dicarboxyphenylboronic acid, preferably 3,5-dicarboxyphenylboronic acid. Said method may in particular be used to separate and assay haemoglobin HbA1c present in a biological sample optionally comprising other haemoglobins, in particular other minor fractions.

Abstract: The invention concerns a free solution capillary electrophoresis method at alkaline pH for the analysis of samples comprising protein constituents including a lipoprotein constituent or constituents, characterized in that it comprises at least one step in which the sample is introduced into a capillary tube containing an analysis buffer, said analysis buffer further comprising at least one anionic surfactant type additive that is capable of hydrophobic interaction with the lipoprotein constituent(s) and of modifying the electrophoretic mobility. The invention also concerns a composition for capillary electrophoresis and a kit for analyzing protein constituents.

Abstract: The invention concerns a method for free solution capillary electrophoresis at an alkaline pH to analyze samples comprising haemoglobin, in which the sample is passed through a capillary containing an analysis buffer, comprising at least one step in which the sample is introduced into a capillary tube containing a solution of analysis buffer, characterized in that the buffer is of the zwitterionic type and in that it is associated with at least one flow inhibitor. It also concerns the use of CE flow inhibitors associated with at least one zwitterionic buffer, and a kit for analyzing haemoglobin by capillary electrophoresis.

Abstract: The invention relates to a method for analysis by capillary electrophoresis of glycated haemoglobins comprising at least one globin chain comprising a glucose residue bound to the amino acid in the N-terminal position, contained in a biological sample, said method comprising using a buffer composition comprising at least one compound which is capable of specifically complexing glucose residues of one or several glycated haemoglobin(s) and of providing said glycated haemoglobin(s) with several negative electric charges at an alkaline pH. By way of example, this compound may be 3,4- or 3,5-dicarboxyphenylboronic acid, preferably 3,5-dicarboxyphenylboronic acid. Said method may in particular be used to separate and assay haemoglobin HbA1c present in a biological sample optionally comprising other haemoglobins, in particular other minor fractions.

Abstract: The invention concerns a method for free solution capillary electrophoresis at an alkaline pH to analyze samples comprising haemoglobin, in which the sample is passed through a capillary containing an analysis buffer, comprising at least one step in which the sample is introduced into a capillary tube containing a solution of analysis buffer, characterized in that the buffer is of the zwitterionic type and in that it is associated with at least one flow inhibitor. It also concerns the use of EC flow inhibitors associated with at least one zwitterionic buffer, and a kit for analyzing haemoglobin by capillary electrophoresis.

Abstract: The invention concerns a free solution capillary electrophoresis method at alkaline pH for the analysis of samples comprising protein constituents including a lipoprotein constituent or constituents, characterized in that it comprises at least one step in which the sample is introduced into a capillary tube containing an analysis buffer, said analysis buffer further comprising at least one anionic surfactant type additive that is capable of hydrophobic interaction with the lipoprotein constituent(s) and of modifying the electrophoretic mobility. The method also concerns a composition for capillary electrophoresis and a kit for analyzing protein constituents.