Laboratory Chemicals - Park Scientific Limited

SPECIAL OFFERS

Cat. 1714 HEPES Buffer Molecular Biology

OFFER PRICE

Pack size
100g
500g

Price £
15.00
65.00

C₆H₁₈N₂O₄S
Assay
pKa (20°c)
Absorbance (1m solution in water)
Heavy metals as Pb
Iron (Fe)
Solubility
(5% Soln. in water)

M.W. 238.31
Min. 99.9%
7.55+/-0.2
Max. 0.2
Max. 10ppm
Max. 5ppm
Clear complete
and colourless

Please quote reference
No.
PK0211D

Cat. 1707 Haematoxylin for Microscopy
C.I.75290

OFFER PRICE

£12.50 / 25g

Please quote reference
No.
PK0211A

Appearance:

Dye content
(Spectrophotometric)
Water Content
Hematein Content

Pale beige powder

min 95%

5-6%
0.1%

Cat. 2483 Tris-(Hydroxymethyl) -
aminomethane AR (Tris-Buffer)
A high purity grade of Tris buffer which finds many applications in biochemistry.

OFFER PRICE

Pack size
100g
500g
1kg
5kg

Price £
4.85
18.95
31.00
140.00

C₄H₁₁NO₃
Assay (on dried basis)
Heavy metals as Pb
Iron
Insoluble matter
Residue on ignition
pKa (25°c)
Solubility
(1M solution in water)

M.W. 121.14
Min. 99.9%
Max. 5ppm
Max. 1ppm
Max. 0.005%
Max. 0.1%
8.3+/-0.1
Clear complete
and colourless

Please quote reference
No.
PK0211B

FREE SAMPLE FREE SAMPLE FREE SAMPLE

Cat. 1039 Agarose type PGP
- an economical grade specially developed
An economical grade of agarose intended for general purpose applications where premium quality is not required.

FREE 25g SAMPLE

Please quote reference
No.
PK0211C

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Facsmile; 01604 648241
Email; info@parkscientific.com

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