Faculty of Engineering, Tokyo Polytechnic University, 1583, Iiyma Atsugi, Kanagawa 243-027, Japan.
Molecules. 2021 Aug 16;26(16):4953. doi: 10.3390/molecules26164953.
Carthamin potassium salt isolated from L. was purified by an improved traditional Japanese method, without using column chromatography. The H and C nuclear magnetic resonance (NMR) signals of the pure product were fully assigned using one- and two-dimensional NMR spectroscopy, while the high purity of the potassium salt and deprotonation at the 3' position of carthamin were confirmed by atomic adsorption spectroscopy and nano-electrospray ionization mass spectrometry.
红花钾盐从 L. 中分离出来，采用改进的传统日本方法进行纯化，未使用柱层析。通过一维和二维核磁共振波谱法对纯产物的 H 和 C 核磁共振（NMR）信号进行了全归属，而原子吸收光谱法和纳升电喷雾电离质谱法则证实了钾盐的高纯度和红花中 3' 位的去质子化。
