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System for measuring main component content of emulsion and detection method thereof

A measurement system and measurement method technology, applied in the direction of scattering characteristics measurement, etc., can solve the problems of inability to achieve rapid measurement, consume a lot of reagents, and cumbersome sample pretreatment process, and achieve a wide range of use, a small number of consumed samples, and low cost. Effect

Inactive Publication Date: 2015-06-24
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these indirect analysis methods also have disadvantages, such as high consumption of reagents, cumbersome sample pretreatment process, etc., so that rapid measurement cannot be achieved

Method used

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  • System for measuring main component content of emulsion and detection method thereof
  • System for measuring main component content of emulsion and detection method thereof
  • System for measuring main component content of emulsion and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] Take the measurement of dry rubber content in natural concentrated latex as an example. Calibration is required before measuring samples of unknown concentration, and can be measured directly afterwards. Configure standard concentration samples, the lowest dry glue content concentration is 15%, the highest dry glue content concentration is 50%, with an interval of 5%, a total of 8 groups of samples. BaSO 4 Put the whiteboard and the 8 groups of samples under the fiber optic probe 1 in turn, and put the distilled water under the fiber optic probe 2, read out the voltage value output by the secondary amplifier circuit module in turn (can be measured with an oscilloscope), and substitute the voltage value into the formula (2) Record the calculated absorbance data in Table 1.

[0127] Table 1 Measured Latex Data Sheet

[0128]

[0129] The fitting equation obtained is

[0130] y=-128.128x+72.54 (4)

[0131] The fitted curve is as Figure 12 As shown, the abscissa i...

Embodiment 2

[0134] Take the measurement of fat content in soybean milk as an example. Calibration is required before measuring samples of unknown concentration, and can be measured directly afterwards. Configure standard concentration samples, the lowest fat content concentration is 0.213%, the highest fat content concentration is 1.698%, a total of 8 groups of samples. BaSO 4 Put the whiteboard and the 8 groups of samples under the fiber optic probe 1 in turn, and put the distilled water under the fiber optic probe 2, read out the voltage value output by the secondary amplifier circuit module in turn (can be measured with an oscilloscope), and substitute the voltage value into the formula (2) Record the calculated absorbance data in Table 2.

[0135] Table 2 Measuring Soymilk Data Sheet

[0136]

[0137] The fitting equation obtained is

[0138] y=-7.176x+2.59 (5)

[0139] The fitted curve is as Figure 13 As shown, the abscissa is the absorbance of soybean milk, and the ordinat...

Embodiment 3

[0142] Take the measurement of fat content in coconut milk as an example. Calibration is required before measuring samples of unknown concentration, and can be measured directly afterwards. Configure standard concentration samples, the lowest fat content concentration is 0.415%, the highest fat content concentration is 1.168%, a total of 8 groups of samples. BaSO 4 Put the whiteboard and the 8 groups of samples under the fiber optic probe 1 in turn, and put the distilled water under the fiber optic probe 2, read out the voltage value output by the secondary amplifier circuit module in turn (can be measured with an oscilloscope), and substitute the voltage value into the formula (2) Record the calculated absorbance data in Table 3.

[0143] Table 3 Measuring Coconut Milk Data Sheet

[0144]

[0145] The fitting equation obtained is

[0146] y=-5.843x+2.439 (6)

[0147] The fitted curve is as Figure 14 Shown, the abscissa is the absorbance of coconut milk, and the ordi...

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Abstract

The invention discloses a system for measuring a main component content of emulsion and a measurement method thereof. A near-infrared LED and a matched photodiode are used as input and output signal sources of a photosensor, a W type optical fiber is used as a non-functional sensor, the distance between an optical fiber probe and a sample is adjusted by a liftable objective table, and a constant temperature of the sample is maintained by a constant temperature device; a linear regression analysis method is adopted in the measurement method for processing the measurement data, and a path of reference signals is added to eliminate the influence of such external factors as temperature excursion on the measurement stability of the system. The measurement system is high in integration degree, small in sample consumption number, and is a nondestructive measurement method; the measurement method is also used for displaying a measurement result in real time, and is very suitable for measurement and analysis of the main component content of the emulsion.

Description

technical field [0001] The invention relates to a system for measuring the main component content of an emulsion and a detection method thereof, belonging to the technical field of liquid component detection. Background technique [0002] The liquid to be dispersed (dispersed phase) is dispersed in the form of small liquid droplets in another continuous liquid medium (dispersion medium), and this liquid is dispersed in the form of small liquid droplets in another liquid that is immiscible with it The thermodynamically unstable system formed in is called an emulsion. The diameter of the dispersed phase of the emulsion is generally 0.1-10 μm. From the particle diameter range of the emulsion, most emulsions belong to the coarse dispersion system. Typical food emulsions include milk, goat milk, soybean milk and mayonnaise, etc. The content of main components in these emulsions is related to human health; industrial emulsions include natural latex, latex paint, etc. The content ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/49
Inventor 朱星玥赵志敏俞晓磊钱坤
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS