"water+bath"

For Reconstitution Practice!

Pre-mixed, and ready to use, this master mix contains DNA polymerase, dNTPs, MgCl₂, and reaction buffers at optimal concentrations for the amplification of DNA via PCR. Its special formulation allows for direct loading of PCR samples into agarose gels as well as tracking the migration during electrophoresis without the need for loading dyes. Simply add template, primers, and nuclease-free water, available separately. Mater Mix reduces risk of contamination. Includes enough for 100 reactions. Note: Can be stored at 4 °C for up to six weeks, or −20 °C for longer.

Kit K-9203 comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules, acidifier solution, activator powder, 25 ml sample cup, ampoule blank, and instructions. This kit requires the use of a CHEMetrics direct-readout Photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell. Instrument sold separately.

Easy way to test plant samples for their required macronutrients.

Decon's phenazine paper is specifically designed for determining pH in the range of 4.0 to 8.0.

Indole Reagent
Indole Reagent for the Indole reaction of Enterobacteria. 30 ml bottle.

Oxidase Test Strips
Test Strips to detect production of cytochrome oxidase in microorganisms. Package of 50 strips.

This kit requires the use of the V-2000 or V-3000 Photometer, a SAM Photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell.

Ceric sulfate is the titrant and ferroin is the end point indicator. The method is free from glycol interference in samples that contain up to 75% glycol, making it particularly applicable to systems that contain nitrite corrosion inhibitors. Results are expressed as ppm (mg/L) NaNO2.

High Quality for the Classroom.

This non-clogging aspirator head prevents large debris from entering and clogging the system.

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

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

Simplify soil nutrient testing with reliable, pre-measured tablets. Ideal for hands-on classroom labs and field soil analysis.

Demonstrate the Stirling Design External Combustion Engine with our 18×11 cm working model. The Stirling engine currently is being re-examined as a practical source of power because of its adaptability to almost any fuel. First produced in the 1800’s as a non-electric fan and an automatic hot air water pump, the engine soon became obsolete due to its lack of sufficient power when compared to the newly developed combustion engine. Any fuel can be used with our model, but denatured alcohol is suggested for clean operation.

More bubbles are more fun.

This chemical test kit will determine the commonly monitored parameters in soil testing.