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Accurate pipette calibration method

A calibration method and pipette technology, applied in the field of accurate pipette calibration, can solve problems affecting normal use, high precision, small error, etc., and achieve the effect of easy judgment and guaranteed permeability

Inactive Publication Date: 2018-05-01
安吉元融仪器仪表检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The pipette is a frequently used instrument in the chemical laboratory; the pipette can not only pipette liquid, but also accurately measure the corresponding volume of liquid as needed. Therefore, during the experiment, use the pipette to measure The liquid has high precision and small error; after the calibration is completed, if the original scale line is not erased, both scale lines will be on the pipette, which will affect the normal use

Method used

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0016] An accurate pipette calibration method comprising the steps of:

[0017] 1) Measure the temperature and air humidity in the laboratory, then rinse the pipette with deionized water, and place it on the pipette rack to dry naturally after rinsing;

[0018] 2) Select a beaker, and then use decontamination powder to scrub the inner wall of the beaker. After the scrubbing is completed, use deionization to rinse it several times, place it in an oven to dry, and then cool it down to room temperature naturally;

[0019] 3) Take out the deionized water from the container, then pour it into a 500mL beaker, put the beaker with deionized water in the room, and let it stand for 5-10 hours; turn on...

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PUM

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Abstract

The invention discloses an accurate pipette calibration method. The method comprises the following steps that 1, the temperature and air humidity in a laboratory are measured, pipette is washed with deionized water, after washing is completed, the pipette is placed on a pipette rack to be aired naturally. Accordingly, by weighing the mass and inquiring the density for liquid sucked by the pipette,corresponding density is worked out by means of the relationship of the mass and the density, the accuracy of the number marked on the pipette can be determined, and then judgement is facilitated, and adjustment is conducted; meanwhile, after calibration is completed, by using abrasive paper for removing original scale marks, the phenomenon that in the user process, misoperation occurs, so that measured liquid has deviation, and the success rate of experiments is affected can be avoided.

Description

technical field [0001] The invention belongs to the technical field of instrument calibration, in particular to an accurate pipette calibration method. Background technique [0002] The pipette is a frequently used instrument in the chemical laboratory; the pipette can not only pipette liquid, but also accurately measure the corresponding volume of liquid as needed, so during the experiment, use the pipette to measure The precision of the liquid is high and the error is small; after the calibration is completed, if the original scale line is not erased, both scale lines will be on the pipette, which will affect the normal use. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an accurate pipette calibration method for removing the original scale line. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: an accurate pipette calibration method, c...

Claims

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Application Information

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IPC IPC(8): G01F25/00
CPCG01F25/0084
Inventor 张明
Owner 安吉元融仪器仪表检测有限公司
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