Hild J, Gertz C
Z Lebensm Unters Forsch. 1980 Feb;170(2):110-4. doi: 10.1007/BF01093687.
For the quantitative determination of preservatives in food, analyses were carried out by means of GLC, HPLC, and TLC according to the TAS-method. Using the alkaline extract (sample preparation see part I) the preservatives can be analysed as free acid or appropriate ester out the same GLC-column without any interference from coextractives. A fast and accurate HPLC determination can be achieved by direct injection of the alkaline extract. All preservatives were well separated and detected at a wavelength of 225 resp. 232 nm. As a quick test for the qualitative estimation the TLC (TAS) method is suggested and a suitable solvent system is proposed.
为了定量测定食品中的防腐剂，根据TAS方法通过气相色谱法（GLC）、高效液相色谱法（HPLC）和薄层色谱法（TLC）进行分析。使用碱性提取物（样品制备见第一部分），可以在同一气相色谱柱上分析防腐剂的游离酸或相应酯，而不会受到共提取物的任何干扰。通过直接进样碱性提取物可以实现快速准确的高效液相色谱测定。所有防腐剂都能得到很好的分离，并在225或232nm波长下检测到。作为定性评估的快速检测方法，建议采用薄层色谱（TAS）法，并提出了合适的溶剂系统。
