sodium cyclamate, whose chemical name is sodium cyclamate, is an organic compound with the chemical formula of C6H12NNaO3S. It is a commonly used sweetener, and its sweetness is 31-41 times that of sucrose.

On October 27th, 2117, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference, and sodium cyclamate was in the list of three types of carcinogens. Although the scope of use and the maximum dosage of sodium cyclamate have been clearly defined in China, the use of sodium cyclamate beyond the scope and beyond the limit is not uncommon.

Some scholars conducted random sampling inspection on liquor circulating in the market to understand the current situation of liquor quality and safety. * * * 519 batches were sampled, and sodium cyclamate was mainly tested. Among 519 liquor samples, 27 batches of sodium cyclamate were unqualified, and 12 batches of sodium cyclamate were unqualified.

The detection results and analysis of sweeteners in eight kinds of food sold in Shaanxi Province show that the maximum detection value of sodium cyclamate in catering food is 4.6 times of the national standard limit, and it is common to add sorbic acid and sodium cyclamate to eight kinds of food sold in the market.

UV spectrophotometry for detecting sodium cyclamate:

Sodium cyclamate has absorption wavelength under UV spectrophotometer, and the content is directly determined after being extracted by ether. For liquor samples, because the sample itself contains some similar substances such as cyclohexanol and cyclohexyl, the problem of background value will occur. In order to avoid this phenomenon, sodium cyclamate can be extracted from the acidified sample by ether, and then the sulfate content generated by further derivation can be indirectly determined. The minimum detection limit of this method is 1.12g/kg, and the recovery rate is 86.7%-115%.

The samples without background problems can react with nitrite in acidic medium, and after the reaction is complete, potassium iodide is added for display, and the content of sodium cyclamate is indirectly determined by ultraviolet spectrophotometer. The detection limit (3S/N) of this method is 1.3 mg/L..

the content of sodium cyclamate in jelly was determined by this method, and the recovery rate was 112.6%-113.3%. Compared with atomic absorption spectrophotometry, the pretreatment method of this method is complicated, but it can be accurately quantified according to different samples.