Estimated Kovats RI: Value: 1138 iu Confidence interval (Alcohols): 41(50%) 176(95%) iu
Kovats index 1. Value: 1173 iu Column Type: Capillary Column Class: Semi-standard non-polar Active Phase: DB-5MS Column Length: 30 m Carrier Gas: He Column Diameter: 0.25 mm Phase Thickness: 0.25 um Data Type: Kovats RI Program Type: Ramp Start T: 40 C End T: 200 C Heat Rate: 4 K/min Start Time: 5 min End Time: 20 min Source: Yu, E.J.; Kim, T.H.; Kim, K.H.; Lee, H.J. Characterization of aroma-active compounds of Abies nephrolepis (Khingan fir) needles using aroma extract dilution analysis Flavour Fragr. J., 19, 2004, 74-79.
2. Value: 1160 iu Column Type: Capillary Column Class: Standard non-polar Active Phase: BP-1 Column Length: 50 m Carrier Gas: H2 Column Diameter: 0.33 mm Data Type: Kovats RI Program Type: Ramp Start T: 65 C End T: 220 C Heat Rate: 5 K/min Start Time: 2 min Source: Ekundayo, O.; Laakso, I.; Adegbola, R.-M.; Oguntimein, B.; Sofowora, A.; Hiltunen, R. Essential oil constituents of Ashanti pepper (Piper guineense) fruits (berries) J. Agri. Food Chem., 36(5), 1988, 880-882. 上面的RI 1138是怎么估算出来的？ 是否根据上面的文献？ 这与用分子手册查的标准数据库哪个更可靠？
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