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观察某大学师生和某公司职员共２８５名。男性２４３名，平均年龄为３７．３±１１．１岁。女性４２名，平均年龄为２７．５±９．３岁。吸烟１３６名。在不吸烟１４９名中包括被动吸烟（ＰＳ［＋］）１０２名和非被动吸烟（ＰＳ［－］）４７名。用高效液相色镨（ＨＰＬＣ）法?
A total of 285 teachers and students in a university and a company staff. 243 males, with an average age of 37.3 ± 11.1 years. 42 females, with an average age of 27.5 ± 9.3 years. 136 people smoke. Of the 149 non-smokers, there were 102 passive smoking (PS [+]) and 47 non-passive smoking (PS [-]). Using high performance liquid chromatography praseodymium (HPLC) method?