26
LMS Issue 4 | 2014
Education & Research
Consistent Chromatography
W
ith an ever-increasing emphasis
on the need to produce suitably
skilled analysts and research scientists,
Metrohm is proud to release its latest
generation ion chromatography system.
The 883 BASIC IC plus is ideal for
Metrohm SA
Contact: Ravi Issari
Tel: 011-656-2686
Email: [email protected]
universities and technikons who place
emphasis on providing students with
high quality training instruments.
The 883 IC takes up very little
bench space, yet still includes all the
same intelligent IC features of more
advanced professional IC’s. The system
is controlled by MagIC Net™ Basic,
which is custom-written software by
chemists for chemists, and enables
analyses in the ppm range.
The low running costs and the unique
10-year warranty on the chemical suppressor results in the 883 IC having
the best price/
performance ratio of
this market segment.
In addition to
tertiary institutions,
this system is also
suitable for routine
applications in the
water, food and
chemical industries.
In certain cases
where multiple analyses
are required the 883 can be coupled to the
863 Autosampler, where 36 samples can
be accommodated. The system can be also
customised for anion or cation analysis. ⚛
Keeping Museum Specimens Fresh
M
useum specimens are frequently
housed in industrial methylated
spirits at solution strength of 70% to
80%. The alcohol concentration in
the jars decreases considerably over
time due to evaporation. Too low
alcohol concentrations can result in
fungal infestation of the specimens and
osmotic fluctuations and allow bacteria
to flourish in the jars. These conditions
may also lead to degradation of the
specimen’s DNA. Thus, regular checks
on the percentage of alcohol in the jars
are essential.
Looking after 200-yearold specimens
Using a glass hydrometer to measure
ethanol concentration is tedious, timeconsuming and requires a minimum
sample amount of 50ml.
This makes it difficult to check many
jars containing smaller specimens such
as worms or spiders, which are housed
in only 50 to 200ml of solution.
• Stores results and allows for print
• Displays results in other measuring
units
• EX certification (EX marking II 2
G EX ib IIC T4) for alcohol checks
in EX-protected zones. ⚛
The portable density
meter DMA 35 features:
• Automatically determines and displays result in % v/v alcohol
• Uses only 2ml of solution
• Requires less than a minute for a
measurement, including filling and
cleaning
Anton Paar Southern Africa (Pty) Ltd
Contact: Andre van Zyl
Tel: 011-021-5165/6/7
Email: [email protected]
Precision Analysis
M
ilestone’s DMA-80 is a direct
mercury analyser that uses the
principle of thermal decomposition,
amalgamation and atomic absorption.
The DMA-80 can analyse both solid
and liquid matrices with equal precision.
All mercury is released from the
sample through thermal decomposition. This eliminates the need for any
sample preparation and, subsequently,
purchasing, handling and disposing
of hazardous chemicals. No sample
preparation is required, thus the typical
bottleneck in the analytical laborat