A new chalcone glycoside,butein-4-methoxyl-4'-O-(6'-O-acetyl)-β-D-glucopyranoside(2),along with seven known compounds,namely,quercitrin(1),luteolin-7-O
A mild and efficient method for diacetylation reaction was developed,by which diacetate could be achieved through the reaction of aldehyde with acetic anhydride
A high sensitive long period fiber grating(LPFG) sensor for the detection of nitrite is proposed, which is realized by coating multiple poly(sodium 4-styrensulf