A red substance is found at a crime scene. A test is performed on the substance in which a liquid is sprayed on the unknown red Sunsence. The reaction produces a blue glow that lasts for 30 seconds when the room is darkeried What test was performed?

A presumptive color test that detects blood. It's typically used to test for blood in urine samples. It's a plastic strip with TMB (tetramethylbenzidine) and hydrogen peroxide. The blood is picked up with a wet swab and placed on the pad. It starts at yellow, but if there's blood, it will turn green or blue-green

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A red substance is found at a crime scene. A test is performed on the substance in which a liquid is sprayed on the unknown red Sunsence. The reaction produces a blue glow that lasts for 30 seconds when the room is darkeried What test was performed?​

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A red substance is found at a crime scene. A test is performed on the substance in which a liquid is sprayed on the unknown red Sunsence. The reaction produces a blue glow that lasts for 30 seconds when the room is darkeried What test was performed?