"Water"

Supplier: Sampling Systems

The Deep water sampler can take samples of liquids from large depths.

Supplier: TCI

Methylrød 0,04% in water for pH determination

Supplier: TCI

Phytic acid ∼50% ∼1.1 mol/L in water

Supplier: Avantor

N,N-Dimethylformamid ≥99.8% (by GC, corrected for water content), BakerDRY™ for organic synthesis, J.T.Baker®

Supplier: VWR Collection

This powerful and intuitive laboratory water purification system produces Type I ultrapure water from RO, distilled or deionised water. The product water quality meets or exceeds CLSI and CAP Type I water standards.

Supplier: Merck

Trace metals - fresh water sediment 3, Supelco®, Certified reference material, : N/A, Pkg of 50 g

Supplier: NEUBERT VOLUME GLASSWAERE

Water separator made of Borosilicate glass 3.3.

Supplier: TCI

Poly(methyl vinyl ether) 30% in water

Supplier: TCI

Imidazole hydrobromide, low water content ≥98.0% (by HPLC, titration analysis)

Supplier: LP ITALIANA

Water sampling bottles, made of PET, graduated, ideal for water sampling and microbiologic analysis.

Supplier: TCI

Hydroxyethansyre ∼70% ∼12 mol/L ≥70% in water

Supplier: LAUDA

Water still suitable for single distillation and for bench mounting.

Supplier: VWR Collection

This 'two in one' lab water system produces ultrapure (Type I) and RO (Type III) water from tap water. Quality of ultrapure water meets or exceeds ASTM, CLSI, CAP, and ISO Type I water standards.

Supplier: Thermo Fisher Scientific

Aluminiumtrilactat 90-95% contains ≈5% water

Supplier: EDVOTEK

Safe drinking water is vitally important to health. Both pathogenic and harmless bacteria can be found in the guts of mammals and birds. Testing water for every possible type of pathogenic bacteria is slow and costly. Thus, water is tested for a characteristic type of gut bacteria - the coliforms - including the familiar E. coli. Presence of coliforms is an indicator for faecal contamination. In this experiment, students test for coliforms in simulated contaminated water using colour and fluorescent reagents. They can use these same reagents to test water samples from the environment. As an extension activity, a Gram Stain test can be performed on the collected samples.

Supplier: Thermo Fisher Scientific

Glutaraldehyd 25% in water for electron microscopy, purified