Cuvettes are one of the most important tools in the laboratory and are widely used in various optical measurements, such as spectrophotometry, fluorescence spectrometry, etc. With cuvettes, important information such as the concentration of substances in the sample solution, reaction rates, etc., can be accurately measured.
When using cuvettes, there are a few things to keep in mind:
First, how to use.
1.Remove the sleeve from the outside of the cuvette and dry the cuvette with filter paper or clean gauze.
2.Rinse the cuvette 3 times with the solution to be measured, and then rinse the cuvette with the solution to be tested to avoid other substances attached to the cuvette affecting the measurement results.
3.Inject the solution to be tested into the cuvette, about 70% full, and shake gently to mix the solution evenly.
4.Place the cuvette on the translucent side of the instrument** and gently rotate the instrument so that the front side of the cuvette fits snugly against the instrument.
5.Adjust the zero point of the instrument, rotate the cuvette to the measuring angle of the instrument, and record the measurement results after the instrument reading is stable.
2. Precautions.
1.The cuvette should be dried with filter paper or clean gauze before use, so that other substances attached to the outer wall of the cuvette will not affect the measurement results. At the same time, care needs to be taken not to use rough paper or cloth to wipe the cuvette so as not to scratch the cuvette.
2.Before use, the cuvette should be rinsed 3 times with the solution to be measured, and then the cuvette should be rinsed with the solution to be tested to avoid other substances attached to the cuvette affecting the measurement results. At the same time, be careful not to turn the cuvette upside down when rinsing, so as not to leak and corrode the instrument.
3.When injecting the solution to be measured, pay attention to the appropriate liquid level height, not too full and not too little. Too much can spill and cause the instrument to be tarnished or damaged, while too little can lead to inaccurate measurements.
4.After the cuvette is used, it needs to be rinsed with tap water and then rinsed with distilled water more than 3 times. Be careful not to touch the inner wall of the cuvette with your hands when rinsing, so as not to affect the measurement results.
5.The cuvette should be handled with care during use to avoid damage or scratches caused by drops or impacts. At the same time, do not place the cuvette under ultraviolet light or in a high temperature or humidity environment for a long time, so as not to affect the measurement results or shorten the service life.
6.Cuvettes should be kept properly after use, and should not be mixed with other items or in contact with each other to avoid contamination or misuse. At the same time, it is recommended to store it in a dry, ventilated, cool, and dark place to prolong its service life.