• Heavy metals/ochratoxins/bacteria in water

    Three-in-one rapid screening instrument

    "It takes 7 days to send it to the laboratory, but it only takes 5 minutes to complete the test yourself."

    The testing cost is also cheap

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    1. Heavy metal rapid screening (consumables: yellow blood salt, each test cost <5 TWD).

    2. Ochratoxin rapid test (consumables: citric acid, cost per test <5 TWD).

    3. Detection of bacterial concentration in water (consumables: none).

  • Heavy Metal Rapid Screening

    Use yellow blood salt to change color to detect heavy metals (different heavy metals have different colors): yellow blood salt will change color when it encounters heavy metals, just like a urine test paper. If there is any excess, the color will be different

    Ochratoxin rapid test

    Using citric acid to detect ochratoxin (change in absorbance): When ochratoxin is present in a liquid and comes into contact with citric acid, the absorbance at a specific wavelength will increase, just like lemon juice changing color when added to black tea.

    Bacteria concentration detection in water

    Changes in shading rate caused by adding sugar to water: Just like sugared water will go bad after a day, this is because bacteria grow and turn turbid. This turbidity can be used to determine whether there are excessive bacteria.

  • These methods are not random guesses, but are designed based on scientific principles, and have obvious visible changes, such as color change and turbidity, which allow people to "know there is a problem at a glance."

  • Let's look at the principle of rapid screening

    Heavy metal rapid screening - using the color change characteristics of yellow blood salt and heavy metal ions

    Potassium ferricyanide (potassium ferricyanide) is a coordination agent that can form stable complexes with a variety of heavy metal ions (such as Cu²⁺, Pb²⁺, Hg²⁺, etc.). These complexes usually have a distinct color change and can be used for rapid screening tests of heavy metals, such as:

    Reacts with copper ions (Cu²⁺) to form a dark reddish-brown complex.

    Reacts with lead ions (Pb²⁺) to form a yellow precipitate or discoloration.

    Reacts with mercury ions (Hg²⁺) and may produce orange-yellow zirconium ions.

    Reaction with cadmium ions (Cd) may produce a light yellow or white precipitate.

    Ochratoxin Rapid Screening - Using the pH-dependent absorption properties of ochratoxin

    Ochratoxin A (OTA) molecules will present different protonation states under different pH environments, thus affecting the position of their absorption peaks in the ultraviolet region:

    • Under acidic conditions (pH < 4.5), OTA exists mainly in the neutral form with a maximum absorption peak at about 333 nm.

    • As the pH increases, OTA gradually deprotonates to form mono- and dianionic forms, and a second absorption peak appears under neutral to alkaline conditions (pH > 7) with a maximum absorption wavelength of approximately 380 nm.

    Bacteria concentration detection in water - bacterial growth leads to increased turbidity and light shielding properties

    When microorganisms (bacteria) are present in a water sample, if a carbon source (such as glucose, sucrose, etc.) is added, the bacteria will use the sugars to rapidly reproduce, releasing metabolites and causing bacterial aggregation in the process, resulting in increased turbidity of the solution. Growing bacterial colonies will reduce the light transmittance of the solution and increase the light-blocking rate. This feature can be used to quickly infer whether water contains bacteria, especially suitable for preliminary hygiene testing or environmental water sample monitoring.

  • I almost feel dizzy after reading the principle of fast screening

    Don't be dizzy, the operation is very simple

    Heavy metals and ochratoxins: The principle is to measure twice. Take a 3cc sample and measure once. After dropping the test liquid, measure again to see if the difference between the two data exceeds 10%. The rapid screening instrument will help you calculate.

    Bacteria in water are even simpler: add clean water to the feed to be detected, take a 3cc sample, add a little sugar from the sugar bag, and watch the instrument record the shading rate. If there is no bacteria and the shading rate is <10%, don't worry, the instrument will calculate it for you.

  • Look here, wait.

    Is the reagent yellow blood salt for heavy metal rapid screening toxic?

    Wikipedia search --Potassium Ferrocyanide(yellow blood salt)

    https://zh.wikipedia.org/zh-tw/%E4%BA%9A%E9%93%81%E6%B0%B0%E5%8C%96%E9%92%BE

    It is widely used as an anti-caking agent for road salt and table salt.

    Potassium ferrocyanide can be used in animal feed.

    Potassium ferrocyanide is used to determine the concentration of potassium permanganate, a compound commonly used in redox titrations.

    Potassium ferrocyanide can be used as a fertilizer for plants.

    Potassium ferrocyanide is non-toxic and does not decompose into cyanide in the body.

  • Let’s see how it works

    Heavy metal/ochratoxin/water bacteria three-in-one rapid screening instrument

    Take the video for example of ochratoxin

  • I talked a lot before, but I didn't explain the bacteria in the water.

    Bacteria use clean water as a medium and sugar as food. When bacteria grow, the bacteria in the water increase, causing the turbidity to rise. This is used as a way to judge the bacteria in the water. The following figure is a spectrometer with water as the absorbance reference value. The rest are spectra after 2 hours of cultivation. The X-axis is the wavelength and the Y-axis is the absorbance value.

    The phone screen and refrigerator handles are very dirty. You can also try your pet's dry food.

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  • Who needs the Quick Screening Trial?

    Before sending to the lab, screen yourself. Spend 3 minutes and you may save thousands of dollars. The more you test, the more you save.

    Heavy metal quick screening | Add one drop, the water changes color, and you know whether it is toxic

    Like a money detector pen that changes color when it encounters counterfeit money.

    We use "yellow blood salt", an ancient and clever reagent that will immediately produce a color reaction when it comes into contact with heavy metals such as lead, copper, and iron.

    With just a few drops and a few minutes, without any instruments or laboratories, you can determine whether there are toxic metals in water or food.

    🧪 Applicable to: tea, nuts, cocoa, irrigation water, well water, groundwater, animal drinking water, etc.

    赭麴毒素快篩｜酸一點，光一照，就知道有沒有黴菌毒

    Like color-changing ink that develops when it comes into contact with lemon juice

    Ochratoxin (OTA), a toxin produced by mold, changes its absorption properties when it encounters different acids and alkalis. We use citric acid to adjust the pH, and then use a simple light sensor to see if there are dangerous toxins in the food.

    ☕ Applicable: coffee, grains, mushrooms, peppers, dry food, pet food, pre-export batch inspection, etc.

    Bacteria quick screening | Add some sugar, the shade becomes super large, and you will know whether there are bad bacteria in the water

    Like helping bacteria eat sugar to see if they are alive

    Bacteria love sugar! If there are bacteria in the water, they will multiply rapidly after adding sugar, making the water turbid and increasing the light-blocking rate. We use simple light changes to determine whether bacteria are present in large quantities, which is a low-cost initial screening tool for water quality.

    💧 Applicable: water dispensers, water towers, fish ponds, livestock houses, greenhouses, mountain climbing water, etc.

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