Reference standards:2025 Pharmacopoeia - Determination Method for Natural Borneol (Dextrose) Content

Chromatography column: LBC-DEX3Cyclodextrin chiral columnColumn length: 30m, inner diameter: 0.25mm, film thickness: 0.25 μ m

Item number: ZDEX3-30-25-25,

Testing instrument: Agilent 8890, FID detector

柱温： 75℃ to 100℃ at 1℃/min, at 3℃/min to 150℃, at 10℃/min to 220℃(10min)

Vaporization temperature: 200 ℃

Detection temperature: 220 ℃

Column flow rate: 1.0ml/min

Split ratio: 5:1

Injection volume: 1uL

The main active ingredient in natural ice flakes is right-handed borneol, while the effects of left-handed substances are different and must be strictly distinguished.

The pharmacopoeia method uses a 30% seven - (2,3-O-dimethyl-6-O-tert butyldimethylsilyl) - β - cyclodextrin (14% cyanopropyl phenyl) methylsilicone capillary column (column length of 30m, inner diameter of 0.25mm, membrane thickness of 0.25 μ m) with high technical barriers.

The LUBEX DEX3 cyclodextrin chiral column adopts a derivatized cyclodextrin chiral stationary phase that matches the requirements of the pharmacopoeia. It has high recognition ability for chiral compounds and achieves baseline separation of levo - and right-handed Longines, which can meet the requirements of the pharmacopoeia.