syringe to a new disposable cuvette. Hold cuvette downward at 45o angle and inject sample into cuvette until sample reaches the vent patch at the opposite end. Leave the syringe attached to the cuvette. Confirm that the light path at the widest portion of the sample chamber is free of debris or air bubbles. Ignore bubbles Holding a huge hit just produces more smoke than your lungs can handle and it can't go anywhere but out. Cannabis that is vaporized or dabbed, on the other hand, is cleaner and Although there is much speculation on how long to hold a hit in, there does seem to be some consensus on a magic number.
5.3 Before placing the cuvettes in the sample holder clean the outer surface of cuvettes with tissue paper. 5.4 Do not hold the cuvettes from its transparent optical surface. 5.5 Operate the instrument after proper initialization. 6.0 Maintenance : 6.1 Press the keys and handle the instrument carefully.
Colorimeter. 15 polystyrene cuvettes. 15 plastic cuvette lids. How the Sensor Works. Light from an LED light source passes through a cuvette containing a solution sample. Replacement cuvette lids (package of 100). CUV-LID. Cuvette rack, holds 10 cuvettes.