Industrial cyclohexylamine (Appendix A)

Appendix A

Determination of the correction factor

(Standard appendix)

A1 Preparation of calibration mixed solution

a) Reagent cyclohexane ;

Cyclohexamine :

No impurities detected under the test conditions of this standard;

Aniline ;

Dicyclohexylamine

b) Preparation of a single calibration solution

Weigh various reagents (accurate to 0.

Table A1 Preparation of a single calibration solution

c) Preparation of calibration mixed solution

According to the requirements of Table A2, draw the above single calibration solution with a pipette into a clean and dry 10mL volumetric flask of known mass, dilute to the mark with cyclohexamine , mix well, and weigh the mass of the solution (accurate to 0.

Table A2 Preparation of calibration mixture solution

A2 Determination and calculation of correction factor

Start the chromatograph, and after the various operating conditions are stable, draw 0.

In the formula: f _i -the correction factor of component i, mg/mm ² ;

m _i —the mass of component i, mg;

A _i —the peak area of ​​component i, mm ²