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发明授权
CN101532999B 快速鉴定柴油是否掺有醌茜染料的方法 失效 - 权利终止

快速鉴定柴油是否掺有醌茜染料的方法
摘要：
快速鉴定柴油是否掺有醌茜染料的方法，具体如下：在比色管中加入一定量的掺入黑色染色剂的“红油”样品，加入占“红油”样品体积10％的50g/L？NaOH溶液和占“红油”样品体积的10％正丁醇，再加入占红油样品体积7-15％的醌茜增溶剂，接着用超声波处理2～5min，就可分层；如果观察到紫蓝色的水层，可断定含有醌茜，可以准确定性该样品是“红油”，所述的醌茜增溶剂为0.05～0.15g/mL？Na2S2O3的饱和Na2S溶液。本发明的优点在于：用量少、时间短、效率高。可对无法鉴定的掺入黑色染色剂的“红油”进行快速定性鉴定，并且鉴定结果可靠。
摘要（英）：

A method for rapidly determining whether the quinizarin dye is doped in the diesel oil, comprises: adding a certain amount of chilli oil sample in which the black coloring agent is doped into a colorimetric tube, adding 50 g/l NaOH solution accounting for 10% of the chilli oil sample volume and n-butanol accounting for 10% of the chilli oil sample volume, adding quinizarin solubilizer accounting for 7-15% of the chilli oil sample volume, performing the ultrasonic treatment for 2 to 5 min and layering, determining the quinizarin is contained and the sample is chilli oil if the indigo water layer exists, wherein the quinizarin solubilizer is 0.05 to 0.15 g/mL Na2S2O3 saturated Na2S solution. The invention has the advantages of few consumption, short time and high efficiency. The method can rapidly determine whether the quinizarin dye is doped in the diesel oil, and the result is reliable.

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