基于固体核磁共振多次交叉极化的定量检测优化技术

董洪春,张志兰,王宁,唐丹丹,裘子慧,舒婕

The Improved Solid-state NMR Quantitative Method on the Bases of Multiple-cross Polarization Technique

DONG Hongchun,ZHANG Zhilan,WANG Ning,TANG Dandan,QIU Zihui,SHU Jie

表2 使用multiCP和MLGCP-1方法获得的三种L-丙氨酸/L-缬氨酸混合物中组分含量的实验百分误差

Table 2 The percentage errors of multiCP and MLGCP-1 results measuring from three L-alanine/L-valine mixtures with different component contents

样品组分	t_p/ms	MLGCP-1百分误差/%			multiCP百分误差/%
样品组分	t_p/ms	2/5	2/6	3/6	2/5	2/6	3/6
1:3	0.5	1.29	0.94	14.4	4.54	4.40	18.2
	1.0	1.80	4.57	4.53	0.85	8.35	10.2
	1.5	4.91	3.88	4.05	0.22	12.5	28.5
	2.0	3.63	1.27	10.1	0.58	18.7	51.0
1:1	0.5	1.24	1.84	9.67	0.49	1.31	20.1
	1.0	1.33	1.40	3.16	1.14	2.14	3.96
	1.5	1.09	1.13	3.54	0.83	2.63	12.7
	2.0	0.77	0.85	4.40	3.71	0.70	23.1
3:1	0.5	0.72	2.09	6.99	2.31	0.46	11.9
	1.0	2.14	1.76	2.34	0.68	4.99	4.09
	1.5	0.06	1.05	1.10	0.72	7.29	9.63
	2.0	0.92	1.48	0.74	0.74	9.98	14.2