CAJ | 학술논문

建立了顶空气相色谱法测定熏蒸后烟草中的痕量磷化氢。采用PoraPLOT Q毛细管色谱柱，脉冲火焰光度检测器（PFPD） P模式检测。结果显示，方法决定系数R2为0.9998，平均加标回收率为98.90%，日内重复性RSD为0.5%（n=5），日间重复性RSD为2.4%（n=5），方法检出限为0.0050μg/g，定量限为0.015μg/g。运用本方法对熏蒸后烟草进行测试，结果显示熏蒸结束3天后烟草中磷化氢残留量均小于0.0069μg/g。
건립료정공기상색보법측정훈증후연초중적흔량린화경。채용PoraPLOT Q모세관색보주，맥충화염광도검측기（PFPD） P모식검측。결과현시，방법결정계수R2위0.9998，평균가표회수솔위98.90%，일내중복성RSD위0.5%（n=5），일간중복성RSD위2.4%（n=5），방법검출한위0.0050μg/g，정량한위0.015μg/g。운용본방법대훈증후연초진행측시，결과현시훈증결속3천후연초중린화경잔류량균소우0.0069μg/g。
A method was developed by headspace gas chromatography to monitor trace phosphine residue in fumigated tobacco. PoraPLOT Q capillary column and pulsed flame photometric detector (PFPD) in P-mode were employed. Results showed thatR2 was 0.9998, average recovery of 98.90%, intra-day RSD of 0.5% (n=5), inter-day RSD of 2.4% (n=5), and that limit of detection and quantification of phosphine were 0.005 and 0.015μg/g, respectively. Concentration of phosphine in fumigated tobacco was less than 0.0069μg/g three days after fumigation.