Sensitive and selective determination of vitamin B2 in non-alcoholic beverage and milk samples at poly (glutamic acid)/zinc oxide nanoparticles modified carbon paste electrode

在聚谷氨酸/氧化锌纳米粒子修饰碳糊电极上灵敏、选择性地测定非酒精饮料和牛奶样品中的维生素 B2