Bonded phase chromatographic analysis method for tocopheryl acetate in electronic cigarette oil
A technology of tocopherol acetate and electronic cigarette oil is applied in the field of convergence chromatography analysis of tocopherol acetate, which can solve the problems of large consumption of organic solvents and long analysis time, and achieve the effect of rapid determination
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[0029] Example 1
[0030] (1) Preparation of electronic butter sample
[0031] 0.1 g Electronic butter oil is weighed into a 10 mL volumetric flask with isopropanol solvent, and then filtered with 0.22 μm filtration membranes;
[0032] (2) Standard working solution
[0033] Weigh 52.0 mg of totropher acetate standard, to be used to obtain a mother liquor in a 50 mL capacity bottle with isopropanol solvent; In the bottle; standard working fluid having a standard series solution of 1 to 500 μg / ml; such as a standard working solution having a concentration of 1.0 μg / ml, 10.0 μg / ml, 20.0 μg / mL, 100.0 μg / mL, 500.0 μg / ml. ;
[0034] (3) Complex chromatography analysis
[0035] The standard working solution obtained by the step (2) and the electronic butter sample obtained by the step (1) obtained by an ultra-efficient syringe chromatograph were used to detect by a diode array detector (PDA).
[0036] For the choice of the column, three control groups are provided, which use ...
Example Embodiment
[0037] Example 2
[0038] (1) Preparation of electronic butter sample
[0039] It is called 0.2 g of electronic butter oil, and is polyhydropane: isopropyl alcohol (8: 2, v / v) solvent to 10 ml of volumetric flask, and then filtered with 0.22 μm nylon filtration membranes.
[0040] (2) Standard working solution
[0041] It is called 52.0 mg of totropher acetate standard, and nanophenic acid (8: 2, v / v) solvent is disposed to 50 ml of capacity bottle to obtain mother liquor; each takes 10, 100, 200, 1000, respectively. 5000 μL of mother liquor, then use n-heptane: isopropyl alcohol (8: 2, v / v) solvent to be contained in a 10 mL volumetric flask;
[0042] (3) Complex chromatography analysis
[0043] The standard working solution obtained by the step (2) and the electronic butter sample obtained by the step (1) obtained by an ultra-efficient syringe chromatograph were used to detect by a diode array detector (PDA).
[0044] The Viridis HSS C18 Sb (2.1mm × 150mm, 1.8 μm) is used; t...
Example Embodiment
[0045] Example 3
[0046] (1) Preparation of electronic butter sample
[0047] It is weighed 0.5 g of electronic butter oil, with n-hexane: isopropyl alcohol (8: 2, v / v) solvent to 10 ml of volumetric flask, and then filtered with 0.22 μm filtration membranes;
[0048] (2) Standard working solution
[0049] Weigh 52.0 mg of totrocinol acetate standard, use n-hexane: isopropyl alcohol (8: 2, v / v) solvent to obtain mother liquor in 50 ml of volumetric flask; 10, 100, 200, 1000, 5000 μl, respectively Mother liquor, then use n-hexane: isopropyl alcohol (8: 2, v / v) to 10 mL volumetric flask;
[0050] (3) Complex chromatography analysis
[0051] The standard working solution obtained by the step (2) and the electronic butter sample obtained by the step (1) obtained by an ultra-efficient syringe chromatograph were used to detect by a diode array detector (PDA).
[0052] Viridis HSS C18 Sb (2.1mm × 150mm, 1.8 μm); the color column temperature is 40 ° C, the amount of injection is 1 ...
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