MicroBioTests Inc. is the exclusive producer worldwide of Microbiotests Toxkits 

for environmental toxicity testing of polluted aquatic and terrestrial environments.

The highly-standardised toxkits contain all necessary materials to perform rapid, 

user-freindly, cost-effective and culture-independent toxicity bioassays.

Our Microbiotests Toxkits are intended for toxicity screening of 

freshwaters, wastewaters, sediments, seawaters, estuaries, soils, solid wastes and pure chemicals. 

Below, you find a complete overview of the appropriate Toxkits for your specific application.

Freshwater / Wastewater

• Daphtoxkit F (TK33) : The acute toxicity test with Daphnia magna is a 24-48h bioassay based on the immobility of the test organisms, with calculation of the EC50.
• Ceriodaphtoxkit F (TK35) : The acute toxicity test with Ceriodaphnia dubia is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h EC50.
• Thamnotoxkit F (TK31) : The freshwater Thamnocephalus platyurus toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Algaltoxkit F (TK41) : The freshwater algae toxicity test is a 72h bioassay based on growth inhibition of the freshwater microalgae Pseudokirchneriella subcapitata, with calculation of the 72h EC50.
• Ducweed Toxkit F (TK63) : The Spirodela duckweed toxicity test is a 72h bioassay based on the growth inhibition of the “first frond” of Spirodela polyrhiza after 3 days of exposure to a dilution series of the toxicant, with calculation of the 72h EC50. You can determine growth inhibition of the duckweed by area measurement of the first frond with the aid of digital image analysis.
• Rotoxkit F (TK21) : The acute freshwater rotifer toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Rotoxkit F Chronic (TK23) : The chronic freshwater rotifer toxicity test is a 48h bioassay based on the reproduction of the test organisms, with calculation of the 48h EC50.
• Protokit F (TK11) : The chronic Tetrahymena thermophila toxicity test is a 24h bioassay based on the growth inhibition of the test organisms, with calculation of the 24h EC50.
• Phytotoxkit liquid Samples (TK62) : The chronic freshwater rotifer toxicity test is a 48h bioassay based on the reproduction of the test organisms, with calculation of the 48h EC50.
• Rapidtoxkit F Thamno (TK37) : The freshwater Thamnocephalus platyurus rapid toxicity test is a 1h bioassay based on the determination of the uptake of coloured microspheres by the test organisms in a non-toxic medium as compared to the uptake (or absence of uptake) in the test solution under analysis.

Seawater / Estuaries

• Rotoxkit M (TK22) : The acute marine rotifer toxicity test is a 24-48h bioassay based on the mortality of the test organisms, with calculation of the 24h and 48h LC50.
• Artoxkit M (TK32) : The acute Artemia franciscana toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Algaltoxkit M (TK42) : The marine algae toxicity test is a 72h bioassay based on growth inhibition of the marine microalgae Phaeodactylum tricornutum, with calculation of the 72h EC50.

Soils / Solid wastes

• Phytotoxkit Solid Samples (TK61) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to contaminated soils, solid wastes, composts, sludges or chemicals added to soil.
• Phytotoxkit Liquid Samples (TK62) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to pollutants or chemical compounds.
• Ostracodtoxkit F (TK36) : The Heterocypris incongruens toxicity test is a 6-day chronic bioassay based on mortality or growth inhibition of the test organisms, resulting from the direct contact with sediment.

Sediments

• Phytotoxkit Solid Samples (TK61) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to contaminated soils, solid wastes, composts, sludges or chemicals added to soil.
• Phytotoxkit Liquid Samples (TK62) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to pollutants or chemical compounds.
• Ostracodtoxkit F (TK36) : The Heterocypris incongruens toxicity test is a 6-day chronic bioassay based on mortality or growth inhibition of the test organisms, resulting from the direct contact with sediment.

Chemicals

• Phytotoxkit Solid Samples (TK61) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to contaminated soils, solid wastes, composts, sludges or chemicals added to soil.
• Rapidtoxkit F Thamno (TK37) : The freshwater Thamnocephalus platyurus rapid toxicity test is a 1h bioassay based on the determination of the uptake of coloured microspheres by the test organisms in a non-toxic medium as compared to the uptake (or absence of uptake) in the test solution under analysis.
• Rotoxkit F Chronic (TK23) : The chronic freshwater rotifer toxicity test is a 48h bioassay based on the reproduction of the test organisms, with calculation of the 48h EC50.
• Rotoxkit F (TK21) : The acute freshwater rotifer toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Protokit F (TK11) : The chronic Tetrahymena thermophila toxicity test is a 24h bioassay based on the growth inhibition of the test organisms, with calculation of the 24h EC50.
• Ceriodaphtoxkit F (TK35) : The acute toxicity test with Ceriodaphnia dubia is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h EC50.
• Phytotoxkit Liquid Samples (TK62) : The phytotoxicity test is a 3-day bioassay based on the seed germination and root growth of the 3 higher plant species after exposure to pollutants or chemical compounds.
• Ostracodtoxkit F (TK36) : The Heterocypris incongruens toxicity test is a 6-day chronic bioassay based on mortality or growth inhibition of the test organisms, resulting from the direct contact with sediment.
• Thamnotoxkit F (TK31) : The freshwater Thamnocephalus platyurus toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Ducweed Toxkit F (TK63) : The Spirodela duckweed toxicity test is a 72h bioassay based on the growth inhibition of the “first frond” of Spirodela polyrhiza after 3 days of exposure to a dilution series of the toxicant, with calculation of the 72h EC50. You can determine growth inhibition of the duckweed by area measurement of the first frond with the aid of digital image analysis.
• Rotoxkit M (TK22) : The acute marine rotifer toxicity test is a 24-48h bioassay based on the mortality of the test organisms, with calculation of the 24h and 48h LC50.
• Artoxkit M (TK32) : The acute Artemia franciscana toxicity test is a 24h bioassay based on the mortality of the test organisms, with calculation of the 24h LC50.
• Algaltoxkit M (TK42) : The marine algae toxicity test is a 72h bioassay based on growth inhibition of the marine microalgae Phaeodactylum tricornutum, with calculation of the 72h EC50.
• Algaltoxkit F (TK41) : The freshwater algae toxicity test is a 72h bioassay based on growth inhibition of the freshwater microalgae Pseudokirchneriella subcapitata, with calculation of the 72h EC50.
• Daphtoxkit F (TK33) : The acute toxicity test with Daphnia magna is a 24-48h bioassay based on the immobility of the test organisms, with calculation of the EC50.

Rapidtests

• Rapidtoxkit F Thamno (TK37) : The freshwater Thamnocephalus platyurus rapid toxicity test is a 1h bioassay based on the determination of the uptake of coloured microspheres by the test organisms in a non-toxic medium as compared to the uptake (or absence of uptake) in the test solution under analysis.