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Table 2 Calibration curves of 18 target analytes

From: Steam distillation/drop-by-drop extraction with gas chromatography–mass spectrometry for fast determination of volatile components in jujube (Ziziphus jujuba Mill.) extract

Name Calibration curves R2 LOD (μg/g) Recovery
Value (%) RSD(%)
3-Methyl-1-butanol Y = 0.0089X + 0.8730 0.9987 3.16 91.33 10.10
1-Hexanol Y = 0.0039X + 0.01150 0.9931 0.15 95.62 9.81
Furfural Y = 0.0062X + 0.0463 0.7099 0.97 74.19 27.44
Ethyl caprate Y = 0.0066X + 0.0398 0.9990 1.02 103.68 8.24
Menthol Y = 0.0035X + 0.0239 0.9939 0.61 97.38 8.35
2-Furanmethanol Y = 0.0016X + 0.0104 0.8042 1.16 79.22 19.03
Ethyl phenylacetate Y = 0.0300X + 0.2147 0.9991 0.11 96.33 5.41
Ethyl laurate Y = 0.0085X + 0.4157 0.9962 1.86 99.21 5.87
Ethyl 3-phenylpropionate Y = 0.0168X + 0.0494 0.9992 0.41 98.45 8.25
Phenylethyl alcohol Y = 0.0075X + 0.1132 0.9993 1.03 97.61 6.15
Heptanoic acid Y = 0.0029X + 0.0201 0.9887 1.15 87.06 11.06
Ethyl myristate Y = 0.0218X + 0.6532 0.9971 2.67 97.99 3.52
Octanoic acid Y = 0.0024X + 0.0278 0.9895 1.65 90.16 9.17
Ethyl hexadecanoate Y = 0.0143X + 0.9181 0.9979 3.41 100.04 5.28
Decanoic acid Y = 0.0096X + 0.4570 0.9894 3.94 93.54 8.66
Dodecanoic acid Y = 0.0913X + 30.027 0.9981 4.15 95.59 7.94
Ethyl oleate Y = 0.0028X + 0.0390 0.9990 0.84 94.80 8.36
Ethyl linoleate Y = 0.0026X + 0.0183 0.9980 0.75 92.34 10.95