Quantitative PH test box based on smart phone

Abstract

The invention discloses a quantitative PH test box based on a smart phone. The quantitative PH test box comprises a shell, a detection area and colorimetric areas are arranged on the shell, the detection area is used for holding PH reagent paper, the colorimetric areas symmetrically arranged on two sides of the detection area are used for holding standard colorimetric cards, and the detection areais parallel to the colorimetric areas; the detection area comprises a rectangular slot and a visible window, wherein the rectangular slot has a notch, and a plastic transparent sheet with at least one liquid drop hole is arranged on the visible window. The quantitative PH test box is particularly suitable for outdoor space, PH value interpretation and accurate PH quantification can be realized, and personal errors are reduced.

Description

technical field [0001] The invention relates to a smart phone-based quantitative pH test box. Background technique [0002] PH value is a very important detection index in the fields of science and chemical industry, agriculture and industry, and biomedicine. Many chemical reactions need to be carried out at a specific pH value, otherwise the expected product will not be obtained; the effluent pH of the biochemical tank of the sewage treatment plant is preferably 6.8-7.6; many plants have the habit of loving acidic soil or alkaline soil, such as tea Planting, controlling the pH of the soil can make the plants grow better; aquaculture also has high requirements on the pH value, and the safe survival pH range of fish is 6.0-9.0; the pH value of the healthy human internal environment is between 7.35 and 7.45 In this range, human body fluids can maintain normal physiological functions and substance metabolism. It can be judged whether there is a disease by detecting changes in ...

AI Technical Summary

Problems solved by technology

[0003] Common PH value testing methods include PH test paper method and potentiometric method. The PH test paper method dips the solution and drops it on the test paper, and roughly reads the PH value according to the comparison between the color of the test paper and the standard color card. Although this method is simple It is easy to operate, but the reading of the pH value is not accurate enough, and there is a large human error; the potentiometric method uses a pH meter to measure the pH value. The measured pH value

[0004] Traditional PH value detection: PH test paper method, there is a large measurement error, the difference in the color discrimination ability of different testers, the difference in the light of the measurement environment and other factors will affect the measurement results; PH meter measurement: large in size, inconvenient to carry, It is troublesome to replace the pH test paper. The electrode needs to be completely immersed in the solution when measuring, and the amount of solution used is too large

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