"orange de méthyle"

Easy way to test plant samples for their required macronutrients.

Easy way to test soil for the macronutrients that grow healthy plants.

Easy way to test urban water for multiple factors.

The Backpack Lab is designed for educators and environmental science students, containing lessons, activities, and test kits that relate to important parameters evaluated in marine science.

Test method: The Peracetic Acid CHEMets® test kit (0 to 1 and 0 to 5 ppm) employs the DPD chemistry. The sample is treated with an excess of potassium iodide. Peracetic acid oxidizes the iodide to iodine. The iodine then oxidizes DPD (N,N-diethyl-p-phenylenediamine) to form a pink colored species in direct proportion to the peracetic acid concentration. Various oxidizing agents such as halogens, ferric ions and cupric ions will produce high test results. Hydrogen peroxide does not interfere with this test if present at levels comparable to the peracetic acid levels.

Ideal for low- to medium-range colorimetric analysis of water quality

This chemical test kit for the determination of six parameters commonly monitored for aquaculture testing: alkalinity, carbon dioxide, hardness, dissolved oxygen, pH, and salinity. This kit is equipped with all the necessary reagents and equipment to perform over 100 tests for each parameter. pH is obtained with Hanna's pH tester, which guarantees greater accuracy and a longer life than traditional litmus paper.

Dual-purpose test kit for measuring nitrate levels in soil and irrigation water to study nutrient cycling and agricultural impact.

Titrets® test kits use reverse titration to quantify concentrations in aqueous samples

The Vacu-vials® instrumental test kits employ the DPD chemistry and are accepted by the USEPA for wastewater and drinking water analysis.

The Titrets® test uses a ceric sulfate titrant with ferroin indicator. Depending on the procedure used, this kit can determine H2O2 concentrations from 0.01% to as high as 20%.

Water hardness is caused almost entirely by calcium and magnesium ion.

Carbon dioxide test kit with drop count titration covers ranges of 1.25-25, 2-40, and 5-100 mg/L as CO2, with increments of 1.25, 2, and 5 respectively. Includes rugged carrying case, prepackaged reagent set, detailed instructions, and all apparatus you need for fast, easy, and accurate carbon dioxide test results in the field.

Using the simple color disc method, this kit measures Iron (medium range - 0.2-10 mg/L) and contains 100 tests.

This kit test for salinity using the Direct Reading Titrator method.

This chemical test kit that uses the DPD method to measure total chlorine. The test kit is supplied complete with all of the reagents and equipment necessary to perform approximately 50 tests.