Micro SpectrophotometerNote tips when using:

(1) Moderately mix the sample before measurement (vibrator can be used or the bottom of the tube can be shaken with a finger)
(2) The pipette suction head is inserted under the liquid level to absorb samples, which can avoid inhaling bubbles; Tip head is attached to the surface of the lower optical fiber to print the sample, and only press to the end of the first block of the pipettor, do not press the second block, to avoid blowing bubbles into the sample.
(3) After each measurement, clean the upper and lower optical fiber end faces with distilled water, so as to better ensure the accuracy of the next measurement (mainly for ultra-high concentration samples, general samples do not have this requirement).
(4) Before each blank detection, the upper and lower optical fiber surface must be cleaned with water to ensure the accuracy of blank detection.
(5) The nucleic acid sample quantity for each measurement is recommended to be 1-2 μL, protein sample 2 μL. Too little may fail to form a column, too much may spill over.
(6) Measure as soon as possible after adding the sample to prevent evaporation and concentration and dust falling. The added sample cannot be tested for many times. If it needs to be re-tested, the same sample should be added again.
(7) the instrument should avoid direct sunlight and strong wind to avoid evaporation.
(8) Clean the sample after continuous measurement for a period of time, clean the upper and lower optical fiber surface with water, and then re-blank it with water or buffer.
(9) When cleaning the optical fiber end face (sample loading base), it must be gently wiped with clean soft laboratory paper (mirror eraser paper, etc.).
(10) when the instrument is not in use, put the upper arm down to prevent dust.