Krueger D A, Krueger H W
J Assoc Off Anal Chem. 1985 May-Jun;68(3):449-52.
Measurements of delta 13C and 14C-activity were performed on vinegars from various known sources. Natural vinegar can be distinguished from petrochemical acetic acid by 14C-analysis: Natural vinegar currently gives values of greater than 112% of modern activity; petrochemical acetic acid yields values of 0% of modern activity. Apple cider vinegar can be distinguished from corn-derived vinegar by delta 13C-analysis: Cider vinegar gives delta 13C-values near -26%; corn-derived vinegars yield delta 13C-values near -10%. delta 13C-Analysis also can be applied, with some restrictions, to wine vinegars. These techniques are applied to a series of retail vinegars.
对来自各种已知来源的醋进行了δ¹³C和¹⁴C活性测量。通过¹⁴C分析可以将天然醋与石化乙酸区分开来：目前天然醋的测量值大于现代活性的112%；石化乙酸的测量值为现代活性的0%。通过δ¹³C分析可以将苹果醋与玉米衍生醋区分开来：苹果醋的δ¹³C值接近-26%；玉米衍生醋的δ¹³C值接近-10%。δ¹³C分析在有一定限制的情况下也可应用于葡萄酒醋。这些技术被应用于一系列零售醋。
