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N-Propylthiouracil taste test paper (PROP) tests for the genetically controlled ability to taste this substance. PROP can taste bland, bitter or even vile depending upon how sensitive your taste buds are to this chemical. The bitter taste detected by some individuals, and its intensity, depends upon a homozygous dominant or heterozygous condition in the individuals tested. PROP is often used in taste studies aimed at identifying Super Tasters. N-Propylthiouracil test paper is perfectly safe to use. PROP is present at only 20 micrograms per strip. At this level, the compound is negligible and harmless. -
Methyl Violet test paper is a narrow range pH test paper. Methyl Violet will transition from yellow (pH 0.2) to violet (pH 2.0). This test paper should not be used to test the stability of nitrocellulose propellants (see Military Methyl Violet). -
Chromatography paper is used for Chromatographic applications (to separate mixtures of colored dyes or inks). The paper is made of cotton-cellulose, is 0.18 mm thick, has Klemm of 13.0, and has an absorption Speed of 125 mm/30 min. It is equivalent to that of an Ahlstrom 601 or Whatman 1 paper. -
Blue Litmus test paper is a foolproof pH test to determine if something is acidic. The Blue Litmus test paper does not come with a color chart as it cannot provide you with a defined pH value. The test strip will turn red if dipped into an acidic solution (pH <7). It will remain unchanged in an alkaline solution. Although there is no color chart, the strip will turn various shades of red, getting darker the more acidic the solution. We have tested the blue litmus with multiple pH buffers. The blue paper is blue at pH 8. At pH 7, the sample is maybe just a little red. The real change to red seems to start with pH 6.5 and lower. -
Red Litmus test paper is a foolproof pH test to determine if something is a base. The Red Litmus test paper does not come with a color chart as it cannot provide you with a defined pH value. The test strip will turn blue if dipped into an alkaline solution (pH >7). -
Neutral Litmus test paper tests for Neutrality of a solution, or its acidity or alkalinity. The Neutral Litmus test paper does not come with a color chart as it cannot provide you with a defined pH value. The test strip will turn red if dipped into an acidic solution (pH <7) or blue if dipped into an alkaline solution (pH >7). -
The Universal pH test paper is used to test broad-range solutions from 2.0 to 10.0 in increments of 2.0. -
The Ascorbic Acid Test Strip is used to detect Ascorbic Acid, or Vitamin C in graduations of 0, 0.01, 0.02, 0.05, & 0.1%. The Ascorbic Acid test strip is based on discoloration of blue red-ox indicator, depending on the concentration of ascorbic acid. Red-ox indicator is also sensitive to acidic compounds, and its blue color turns to purple in the presence of acids. The Vitamin C strips are buffered to a certain extent to keep the blue color of the pad, but in the presence of strong acids, contained in some fruits or juices, the color can turn to a purple-pink instead of a blue-white. In such cases, we recommend using a special color chart (See FAQs) which shows results for Vitamin C in the presence of different concentrations of citric acid. Lemons and limes contain the highest amount of citric acid at about 5 percent. Grapefruits and oranges also have high content of citric acid at about 2.5 and 2 percent, respectively. -
The Control Paper does not contain any added chemicals, and is simply designed to act as the control in taste test experiments. -
The Glucose test strip is specific to testing glucose (detects 0 - 3000 mg/dL or 0-3%)and is intended for educational use only. The strip can be used to measure glucose levels in osmosis/diffusion experiments, urine analysis (educational only), and food science studies. -
The Glucose test paper detects 0.1 - 2.0% glucose. Our Glucose Test Strips can also be used for similar purposes, however, they are plastic strips rather than paper and measure from 0-3000 mg/dL rather than percentages. The strip can be used to measure glucose levels in osmosis/diffusion experiments, urine analysis (educational only), and food science studies. -
The Lipid test strip detects the presence of Lipids: Fats, Oils, Waxes. These are hydrophobic molecules and include also sterols and fat soluble vitamins such as Vitamins A, D, E, and K, and Cholesterol. This test strip is primarily used in educational environments alongside food analysis kits. -
The Potato test paper is designed to detect sugar levels in potatoes. The amount of free glucose is proportional to the darkness of the potato, thus the strip can be used to determine color prior to deep frying. Potato test paper can also be used to demonstrate osmosis across a membrane, similar to the way the small intestine works, by showing that glucose, but not starch, crosses the barrier. The color chart indicates concentration levels in mg/dL but this can be converted to mmol/L by multiplying by 0.055. eg. 100mg/dL is equal to 5.5mmol/L. Potato test paper is not intended for medical diagnosis. Should you decide to test your urine and you get any positive result you should report it to your physician and test your blood sugar levels. -
The Protein test strip detects residual Protein in water in increments of 0.3, 1.0, 3.0, 10.0 plus g/L. If used to test protein in urine, the color may be more green than blue. If testing urine samples, consider using the Urine Analysis Test Strip. The Protein test strip is based on so-called “protein error of indicators”. This phenomenon relates to the fact that certain pH indicators will change the color at a different pH value in the presence of protein then in the absence of protein. The test is more sensitive to albumin than to globulins, mucoproteins, hemoglobin and Bence-Jones protein. The Protein test strip is strictly for use in education and training students in all levels of medical and clinical-biochemical educational programs. It is not for use in the medical field. -
PTC (pheylthiocarbamide) taste test paper test for the genetically controlled ability to taste this substance. This will allow for the development of a Pedigree for an individual. PTC can taste bland, bitter or even vile depending upon how sensitive your taste buds are to this chemical. The bitter taste detected by some individuals, and its intensity, depends upon a homozygous dominant or heterozygous condition in the individuals tested. PTC Taste Test Paper is perfectly safe to use. Any possible toxicity of PTC would be in grams per kilogram of body weight, which is millions of times greater than anything which would be found in our taste test strips. Phenylthiocarbamide (PTC) is present at only 20 micrograms per strip. At this level, the compound is negligible and harmless. -
Salinity test strips measure the chloride ion (Cl-1) present in solution from 0-1,000 ppm Cl. This strip can be used to educate students on the difference between “fresh” and “salt” water. It can also be useful in explaining the concepts of freezing point depression and boiling point elevation. In applications where the salt content is high the sample will require dilution with deionized water before running the test. In these cases, the test result will need to be corrected by using a dilution factor to arrive at the final result. -
Sodium benzoate test paper detects the genetic ability to taste Sodium Benzoate. The taste detected varies from sweet, salty, to bitter, depending upon the individual. Homozygous-dominant and Heterozygous-dominant individuals will detect the molecule. -
Thiourea test paper test for the genetic capability to detect Thiourea. For other taste tests, see our PTC and Sodium Benzoate test paper. -
The Multiple Urine Test Strip is used for the detection of Glucose, Protein, Ketones and acidity/alkalinity in education. Although the Multiple Urine test strip is determined strictly for use in an educational environment and cannot be used in the medical field, the units of measurement are the same as would be found on the diagnostic test strips used in medical practice. The Multiple Urine test strip is suitable for education and training students in all levels of medical and clinical-biochemical educational programs.
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