Amino acid molecules carry both acid and amino groups. They can
therefore form both acidic anions and basic cations. The pH at
which these two types of iones are both present in the same
concentration is called the isoelectric point.
| Materiallist (Excerpt) |
Product |
Amount |
|
Motor.piston burette,univer.50ml
|
36499-93
|
1
|
|
Cobra3 BASIC-UNIT, USB
|
12150-50
|
1
|
|
Measuring module pH/potential
|
12101-00
|
1
|
|
Magnetic stirrer Mini / MST
|
47334-93
|
1
|
|
pH-electrode, polythene sheathed
|
18450-00
|
1
|
|
Cobra3, sensor -20..110 C
|
12120-00
|
1
|
|
Power supply 12V / 2A
|
12151-99
|
1
|
|
Cable Basic-Unit/Motor piston burette
|
36501-03
|
1
|
|
Software Cobra3 pH and potential
|
14509-61
|
1
|
|
Caustic soda sol.,1.0M 1000 ml
|
48329-70
|
1
|
|
Hydrochloric acid, 1.0 mol/l, 1000 ml
|
48454-70
|
1
|
|
Water, distilled 5 l
|
31246-81
|
1
|
|
Buffer solution, pH 4.01, 1000 ml
|
46270-12
|
1
|
|
Buffer solution, pH 10.01,1000 ml
|
46272-12
|
1
|
|
Glycocoll /glycine/ 100 g
|
31341-10
|
1
|
|
Volumetric flask 500 ml, IGJ19/26
|
36551-00
|
1
|
|
Pipettor
|
36592-00
|
1
|
|
Volumetric pipette, 50 ml
|
36581-00
|
1
|
|
Glass beaker DURAN®, tall, 250 ml
|
36004-00
|
1
|
|
Glass beaker DURAN®, tall, 50 ml
|
36001-00
|
3
|
|
Spoon, special steel
|
33398-00
|
1
|
|
Funnel, glass, top dia. 55 mm
|
34457-00
|
1
|
|
Magnetic stirring bar 30 mm, cylindrical
|
46299-02
|
1
|
|
Wash bottle, plastic, 500 ml
|
33931-00
|
1
|
|
Rubber stopper,d=18/14mm, 1 hole
|
39254-01
|
1
|
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