system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Hydrogen peroxide is used in all of the following chemical tests for blood except -
assistant
The correct answer is  All chemical tests which are used for detection of nature of blood stain are based on peroxidase enzyme and H2O2 
 These tests are benzidine test, phenolphthalein test (Kastle meyer test), leucomalachite green test, guaiacum test, orthotolidine test (Kohn test) and amidopyrine test.