CAROTENE and vitamin A share with a variety of polyene substances the property of giving a blue solution with antimony trichloride in chloroform. Spectroscopical research shows that carotene gives ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果一些您可能无法访问的结果已被隐去。
显示无法访问的结果