Measurement of Sugar Content in Fruit Tea Using a Handheld Colorimeter
DONG Tian-Le1, WANG Yong-Sen2, YANG Lu-Hui1, WEI Jian-Ye1**
1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215127, China; 2. Beijing No.9 Middle School, Beijing 100041, China
Abstract In order to further explore the application of handheld sensors in high school chemistry teaching, the anthrone-sulfuric acid colorimetric method was used to quantitatively determine the sugar content of five popular brands of fruit tea under middle school experimental conditions. The results show that the actual sugar content of fruit tea drinks differs from the sugar level marked by the brands. At the same time, the sugar content of a cup of fruit tea with a capacity of 500 mL exceeds the standard of 25 g per person per day recommended by the Dietary Guidelines for Chinese Residents. The method uses simple instruments and reagents, is easy and fast to operate, has a low detection limit, and is suitable to be carried out in high school chemistry teaching which has high practical application value.
DONG Tian-Le, WANG Yong-Sen, YANG Lu-Hui, WEI Jian-Ye. Measurement of Sugar Content in Fruit Tea Using a Handheld Colorimeter[J]. Chinese Journal of Chemical Education, 2024, 45(19): 89-93.
