A kind of liquid nag calibration solution and preparation method thereof
A calibrating fluid and liquid technology, applied in the field of NAG calibrating fluid, can solve the problems of increasing the use cost of biochemical diagnostic reagents, harsh storage conditions, inconvenient users, etc., and achieve great social and economic benefits, good stability, and simple preparation. Effect
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Embodiment 1
[0027] Configure 1L liquid NAG calibration solution of the present invention, the method is as follows:
[0028] Weigh each component according to the following formula:
[0029]
[0030] Dissolve the above components in 900mL deionized water, stir and dissolve fully, adjust the pH value to 7.4 to obtain the NAG calibration solution dilution; then add 45Uβ-N-acetylglucosaminidase to the NAG calibration solution dilution, and use Dilute to 1L with deionized water to obtain the NAG calibration solution; filter it through a 0.22μm filter membrane and store it at 2-8°C.
Embodiment 2
[0032] Configure 1L liquid NAG calibration solution of the present invention, the method is as follows:
[0033] Weigh each component according to the following formula:
[0034]
[0035] Dissolve the above components in 900mL deionized water, stir and dissolve fully, adjust the pH value to 6.3 to obtain the NAG calibration solution dilution, then add 45Uβ-N-acetylglucosaminidase to the NAG calibration solution dilution, and use Dilute to 1L with deionized water to obtain the NAG calibration solution; filter it through a 0.22μm filter membrane and store it at 2-8°C.
Embodiment 3
[0037] Configure 1L liquid NAG calibration solution of the present invention, the method is as follows:
[0038] Weigh each component according to the following formula:
[0039]
[0040] Dissolve the above components in 900mL deionized water, stir and dissolve fully, adjust the pH value to 7.6 to obtain the NAG calibration solution dilution, then add 45Uβ-N-acetylglucosaminidase to the NAG calibration solution dilution, and use Dilute to 1L with deionized water to obtain the NAG calibration solution; filter it through a 0.22μm filter membrane and store it at 2-8°C.
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