根据E.Rafii等人（1,2）之前建议的程序，该方法用于测定煤油中的一次硫醇、二次硫醇和三次硫醇（硫醇），最高质量为数千ppm。无需预浓缩，通过极化转移（INEPT）核磁共振（NMR）谱对119Sn{H}去耦、重聚焦不敏感核增强的检测下限为煤油中每种硫醇类型40质量ppm。较低的浓度可以使用指定的蒸馏程序来确定。唯一已知的干扰是硫酚和支链醇，如异丙醇和丁醇（见注释）。 该方法依赖于所有存在的硫醇的可溶性三正丁基锡衍生物的定量制备。

This method is for determining primary, secondary and tertiary mercaptans (thiols) in kerosines up to several thousand mass-ppm, based on the procedure previously suggested by E. Rafii, et al. (1,2). The lower limit of detection by 119Sn {H} decoupled, refocused Insensitive Nucleus Enhancement by Polarization Transfer (INEPT) Nuclear Magnetic Resonance (NMR) spectroscopy without preconcentration is 40 mass-ppm per mercaptan type in the kerosine. Lower concentrations can be determined using a specified distillation procedure. The only known interferences are thiophenols and branched alcohols, such as isopropyl and butyl alcohols (see NOTE). The method relies upon the quantitative preparation of soluble tri-n-butyl tin derivatives of all of the thiols present.