3B Scientific - page 139

139
9982-1013459
9982-1010259
9982-1010259
9982-1013457
9982-1010260
9982-1010261
Exper iment s
Mi crobiology
Replicator Stamp with 12 Cloths
The technique with the replica stamp is used to identify and isolate auxo-
trophic mutants from a bacterial strain. To do so, bacteria or yeast colonies
are moved from one agar plate to another. Using the following method, fix
a sterile cloth to the stamp with the holding ring and then press the top
side of the colony plate to the stamp lightly. A duplicate is then produced
using a fresh agar plate. Our replicator stamp is suitable for standard Petri
dishes up to 10 cm. You can sterilize the stamp and holding ring with Etha-
nol. The cloths, made of a cotton polyester mix can be autoclaved.
72x81 mm (HxØ)
Scope of delivery:
Body made of plastic (OVC), plastic-coated aluminium holding ring,
12 cloths 15x15 cm
9982-1010260
Replacement Cloths (12 Pieces) for the Replicator Stamp
9982-1010261
Drigalski Spatula
This stainless-steel Drigalski spatula is widely used in micro-biological
work. It is used to achieve an even spread of single cell and cell-cluster
microorganisms on an agar plate. Our Drigalski spatula is available in two
designs, both of which are 19 cm in length and made of stainless steel:
Drigalski spatula, straight head
9982-1010258
Drigalski spatula, bent head
9982-1010259
Bacteriology Starter Kit
Microbiology is very important in everyday life, so it is exciting for
pupils to learn about it through experimentation. Our bacteriol­
ogy starter kit contains the basic equipment you will need
to carry out microbiology experiments with your pu-
pils in upper secondary school. These user instruc-
tions describe general microbiology work methods,
and explain how to carry out a range of microbiology
experiments:
• Testing for bacteria and carrying out a bacterial
count in soil
• Testing for bacteria and carrying out a bacterial count in
water
• Testing for air-borne bacteria
• Microscopy of bacteria
• Determination of generation times at different tempera-
tures
• Effectiveness of antibiotics
• Occurrence of natural mutations and their characterisation
The experiments are designed for 4 groups of pupils and can be
easily incorporated into everyday school life.
Scope of delivery:
4 inoculation loops, 4 Drigalski spatulas, 20 Petri dishes, 20 reagent glasses
with tops, 3x nutrient agar (175 ml each), 4 drop pipettes, 4 antibiotic test
rings (each with 8 different antibiotics), 50 microscope slides, 50 cover
glasses, 2 packs of filter paper, 1 methylene blue solution (10 ml)
&
D/E/F/S/J/R
9982-1013459
Materials for microbiology:
9982-1013502 Antibiotic test rings
9982-1013456 Nutrient agar
9982-1013457 Inoculation loop
9982-1010259 Drigalski spatula, straight head
9982-1010258 Drigalski spatula, bent head
9982-1010260 Replicator stamp with 12 cloths
9982-1010261 Replacement cloths (12 pieces) for the replicator stamp
Available starting August 2012
Large variety of
subjects – tried-
and-true instructions –
all you need for
4 school groups
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