syringeThe usage method
① Before using E, it is necessary to check for needle tip burrs, needle curls, and body cracks.
② To eliminate the residue of the previous sample between samples, it is necessary to clean the samples 5 to 20 times. But the first 2-3 samples must be disposed of.
③ To remove bubbles from the syringe, immerse the needle tip in the sample solution and repeat the extraction and extraction process. (It is easy to remove bubbles by pointing the needle upwards.)
④ Extract more samples than the final required quantity, and then align them with the scale line. Be careful not to tilt the syringe. Wipe the needle tip with paper or other materials that do not produce fine fibers before injecting.
⑤ After use, it must be cleaned with pure water or acetone and stored after air drying.
【syringeThe cleaning method
For solvents used to clean injection needles, it is necessary to consider their solubility for residual substances (such as used samples). Commonly used solvents include pure water or methanol acetone.
◆syringeOverall cleaning
① Clean with warm water and non alkaline, phosphate free detergent
② Use solvents such as pure water or acetone for extraction and short-term cleaning.
Precautions for using injection needles
① Do not immerse the entire injection needle into the solvent. It will cause the adhesive part to crack.
② Do not place the injection needle in an environment with rapid temperature changes. It will cause damage.
③ Do not place the injection needle in strong acid or polar solvents for a long time. It will cause cracking and damage.
④ The connection between the needle and the syringe of the fixed needle injection needle uses epoxy resin adhesive, so the adhesive may flow out due to erosion by the sample or cleaning solvent used. Please choose the appropriate injection needle based on the sample being used.
③ Dry with air.
