For demonstrating the presence of plaque on teeth and gums. Stains plaque red. Colour easily removed by brushing teeth. Supplied in a pack of 20.
This enlarged model allows students to study the floral and reproductive structure of a dicot. Petals, sepals and stamens are detachable. One anther has been sectioned to reveal the pollen within.
The stigma is shown with pollen grains attached, one of which has generated a pollen tube wh...
A kit comprising four lung bags, with holders and mouthpieces designed for investigations into lung capacity. The bag is made of durable plastic and is silk screened with graduations up to six litres. Useful for comparing lung volume with height, age etc. Instructions included.
Rennet (Rennilase) 50mL
Working Concentration - 0.05 - 0.1%
pH range - 5.5 - 6.5
Temperature range - 30 - 50°C
Substrate - Fresh milk
Product - Caseinogen forms casein
Source - Fungal, Rhizmucor miehei
Trypsin 25g
Working Concentration - 0.1 - 1%
pH range - 5 - 10.5
Temperature range - 20 - 65°C
Substrate - Protein solutions
Product - Peptides and AA's
Source - Porcine pancreas
It’s good pr...
A qualitative determination of glucose in urine.
These test strips have been specifically designed for urine testing. In practice they have been adopted for educational use because of their simplicity and convenience.
Just dip a strip into a test solution and wait a short whil...
Protein (mainly albumen) in urine testing strips.
Just dip a strip into a test solution and wait a short whi...
Nutrient agar powder for preparation of medium. Coliur: Blue. Used for investigating fermentation.
28g of powder required to make up 1 litre of medium.
Measures children from the time they can stand up straight to adulthood (maximum height 2.05m). Comes in its own box for easy storage and transportation.
A semi-transparent, flexible, thermoplastic film with 2-way stretch. Non-toxic, offering good resistance to acids, alkalis and some organic solvents. Will stretch 200% and adhere to irregular shapes and surfaces to provide a secure seal. 100mm x 38m.
The National Counter Terrorism Security Office seeks to restrict the supply of certain chemicals. Philip Harris have a duty to control the supply for these chemicals and any private individual attempting to purchase these chemicals may have their details passed to the police in their area.
Rennet Rennilase Food Grade 25ml