中药材硫磺熏蒸检测方法

硫磺熏蒸是我国传统的中药材养护方法。近年来随着人们对中药材硫磺熏蒸引起的二氧化硫残留的认识,国家逐渐开始减少并禁止中药材的硫磺熏蒸养护。本文采用有机元素分析法,对多种中药材含硫量进行了测定。该法测定中药材含硫量所需样品量少、测定速度快、结果准确。通过对已知中药材含硫量的数据分析,得出中药材硫磺熏蒸的判定标准为含硫量大于0.5%,并采用该标准对10种未知中药材进行了判定,表明元素分析可作为中药材硫磺熏蒸的筛查方法,用于中药材品质的快速鉴定。

Determination Method of Sulfur Fumigated Traditional Chinese Medicines

Sulfur fumigation was a traditional maintenance method for traditional Chinese medicines (TCMs).However, as people have paid more and more attentions on the sulfur dioxide residue in the sulfur fumigated TCMs, China has gradually decreased and banned the sulfur fumigation for TCMs. This study adopted organic elemental analysis for the determination of sulfur contents in multiple TCMs. Elemental analysis can give accurate results with little sample amount in a short time. Data analysis indicated that the sulfur content of 0.5% can b e set as a criterion for the identification of sulfur fumigated TCMs. Sulfur content of ten unknown TCMs were determined by elemental analysis and identified whether the TCMs have been fumigated by sulfur. The developed elemental analysis method can be used as a screening method for rapid identification of TCMs' quality.