Objective To develop and verify a ultraviolet(UV) spectrophotometric method for determination of chitosan(CTS) content. Methods A UV spectrophotometric method for determination of CTS content was developed by optimization of reaction system solution and dilution factor on standard curve, and verified for specificity, linear range,accuracy, precision(reproducibility and intermediate precision) and robustness. Results The optimal reaction system solution was 0. 2% acetic acid solution, while the optimal dilut...