Research Article
Development of a Colloidal Gold Immunochromatographic Strip for the One-Step Evaluation of the Total Content of Rhein and Aloe-Emodin in Rhubarb
Table 1
Determination of rhein and aloe-emodin contents in rhubarb samples by CGIC strip and HPLC.
| | Rhubarb species | Institution/company | Lot no. | Strip (mg g−1) | HPLC (mg g−1) | | Rhein | Aloe-emodin | Total |
| | Rheum palmatum L. | NIFDC | 121249–201304 | 0.5–1.0a | 0.52 ± 0.01b | 0.44 ± 0.01 | 0.95 ± 0.01 | | Rheum palmatum L. | Suzhou Tianling CHM Co., Ltd. | 20180928 | 4.0–8.0 | 3.95 ± 0.01 | 1.50 ± 0.01 | 5.45 ± 0.01 | | Rheum palmatum L. | Anguo Yuanfang CHM Co., Ltd. | 20181001 | 4.0–8.0 | 4.43 ± 0.03 | 1.30 ± 0.01 | 5.72 ± 0.04 | | Rheum tanguticum Maxim. ex Balf. | NIFDC | 120902–201912 | 1.0–2.0 | 0.71 ± 0.01 | 0.38 ± 0.01 | 1.09 ± 0.01 | | Rheum tanguticum Maxim. ex Balf. | Chengdu Nuanmin Co., Ltd. | 20170930 | 4.0–8.0 | 3.45 ± 0.19 | 1.20 ± 0.03 | 4.65 ± 0.22 | | Rheum tanguticum Maxim. ex Balf. | Beijing Tongrentang Co., Ltd. | 501003449E | 4.0–8.0 | 4.29 ± 0.27 | 1.43 ± 0.06 | 5.72 ± 0.33 | | Rheum officinale Baill. | NIFDC | 120984–201202 | 1.0–2.0 | 1.01 ± 0.01 | 0.61 ± 0.01 | 1.62 ± 0.01 | | Rheum officinale Baill. | Anguo Ruiqi CHM Co., Ltd. | 20180809 | 4.0–8.0 | 3.73 ± 0.01 | 1.14 ± 0.01 | 4.86 ± 0.01 | | Rumex crispus Linn. | NIFDC | 121676–201201 | - - -c | — | — | — | | Rheum franzenbachii Munt. | NIFDC | 121291–201803 | — | — | — | — |
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aEach sample was analyzed in triplicate. bThe data represented the mean ± SD. cNot detected.
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