Instruments are indispensable equipment in scientific laboratories, but they also require proper maintenance and upkeep to ensure their lifespan and performance over extended periods. Below are some guidelines for routine instrument maintenance and upkeep.
Cleaning
Generally, regular cleaning is one of the most important maintenance measures. First, clean the instrument surface with cotton balls soaked in professional alcohol or ethanol to effectively remove dust and impurities. Second, for parts prone to grease adhesion, such as suspension rods and shafts, use cotton swabs dipped in a suitable amount of olive oil for cleaning; this achieves good cleaning results. Finally, for internal cleaning of instruments, such as the centrifuge turntable and centrifuge tubes, use a brush or cleaning cotton to wipe them clean. It is important to note that during cleaning, avoid using excessive amounts of water or other liquids to prevent water droplets from entering the volume measuring device and causing inaccurate readings.
Calibration
Instrument calibration is also an important part of routine maintenance and upkeep. When calibrating equipment, careful operation and adjustments are required according to the specific instrument being used. For some instruments, such as solution density meters and balances, calibration can be performed using standard samples. For instruments requiring program control, such as flow cytometers, the calibration method depends on the specific functions of the equipment. Furthermore, for instruments requiring calibration, such as centrifuges and high-performance liquid chromatography (HPLC) equipment, a better approach is to send the equipment back to the manufacturer for calibration to ensure its accuracy and reliability.
Checking and Replacing Consumables
The normal operation of instruments depends on maintaining a stable working state. Replacing worn consumables (such as easily damaged parts, gas filters, optical filters, UV lamps, etc.) helps maintain stable and reliable operation. Additionally, for each instrument, pay attention to the lifespan and replacement cycle requirements specified in its instruction manual. Replace the consumables promptly once they reach the recommended replacement cycle.
Maintaining Standard Operating Procedures
Maintaining standard operating procedures is also an important part of daily maintenance. Especially for instruments handling samples with special chemical compositions, such as gas chromatographs and mass spectrometers, relevant parts should be cleaned before use to remove potentially hazardous substances. Furthermore, some standard operating terms, such as rotation speed and temperature, should also be followed according to the instrument's instruction manual.
