Quality control of Lycium chinense and Lycium barbarum cortex (Digupi) by HPLC using kukoamines as markers

Chinese Medicine

Table 4 Mean contents and proposed content limits for kukoamines A and B in Lycii Cortex

^aCa, average content of klkukoamines in samples (mg/g)
^bSD, standard deviation of the contents in all samples
^cRSD (%) = 100 × SD/mean
^dn, sample size
^et_critical, critical value for a 95% confidence interval when the sample size was 16
^f uc (C), combined standard uncertainty of the kukoamine B content in the sample (mg/g). The calculation is shown in the supplementary data section
^gCalculated limit for kukoamines in the sample. The calculation is shown in the supplementary data section
^hNumber of outlier samples. The data are referenced to Table 1
ⁱPercentage of samples with kukoamine contents outside the calculated limits

ISSN: 1749-8546