Journal of Analytical Science and Technology

Table 2 Optimization of the treatment method of Zhuyeqing Liquor (μg/mL)

From: Simultaneous quantification of major bioactive constituents from Zhuyeqing Liquor by HPLC-PDA

Compound^a	Treatment method
Compound^a	Method 1	Method 2	Method 3	Method 4	Method 5
M1	ND	5.2494	3.1331	9.5943	16.4270
M2	0.0888	0.5371	0.5078	0.5818	0.5942
M3	0.0922	0.0906	0.0388	0.0939	0.1063
M4	0.0263	0.4980	0.5098	0.5069	0.5153
M5	ND	44.0545	101.6907	100.6372	101.7888
M6	0.1479	0.1880	0.1902	0.1927	0.1936
M7	45.2421	563.2436	570.3556	566.0022	574.2514
M8	20.8481	24.6279	25.6049	24.5513	25.7319
M9	0.1931	0.1782	0.1906	0.1918	0.1968
M10	0.0324	0.0526	0.0600	0.0705	0.0736
M11	0.2009	0.4601	0.4871	0.4915	0.4954
M12	0.7071	1.0544	1.0683	1.0699	1.0877
M13	1.1371	2.5392	2.8461	2.8029	2.9909
M14	ND	3.4939	4.0839	4.0563	4.3756
M15	ND	0.0641	0.0678	0.0688	0.0689
M16	0.5189	0.6113	0.5842	0.3282	0.6623
M17	2.9599	2.9776	2.1520	1.6446	2.9957
M18	0.4448	0.5307	0.4278	0.4673	0.5413
Sum^b	72.6396	650.4512	713.9987	713.3521	733.0967

Sample in optimization of the treatment method was 45° Zhuyeqing Liquor (20130207). Method 1, acetoacetate extract; method 2, n-butanol extract; method 3, 70% ethanol treatment; method 4, SPE column eluted with methanol; method 5, HPD₁₀₀ column eluted with ethanol. ^a‘ND’ in the ‘Compound’ column expressed under LOQ. ^bTotal content of the 18 investigated compounds.

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