Advantages:
-
low blood sample
- 2,5 to 20µL max.,
- printresult after only 20s.
- Whole blood, plasma, serum or CSF samples are accepted
Typical advantages
of this new instrument:
- Analox
GM9D Glucose Direct analyser enables the immediate analysis of a whole
blood sample (5µl or 10µl) with no preparative treatment, and
injected directly into the analyser. Results after 20 s !!!
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| Application
to glucose clamping:
In the investigation of
carbohydrate metabolism there are situations when it is important to
have access to rapid serial blood glucose data. Notably this is when
glucose clamping is applied. This implies maintaining the blood
glucose level constant, by means of glucose or insulin infusion, while
observations are made on some aspect of metabolism. The new Analox
GM9D Glucose Direct analyser enables the immediate analysis of a whole
blood sample (5µl or 10µl) with no preparative treatment, and
injected directly into the analyser. No collecting tube is needed
although one can be used if required. The same pipette used to collect
the sample (for example from an indwelling catheter) is used to inject
the blood into the analyser. The GM9D can also be used for plasma or
other biological samples.
Analytical principle:
With glucose oxidase enzyme, the
analyser measures the rate of oxygen uptake and, under appropriate
controlled conditions, this is directly proportional to the glucose
concentration:
Operation:
Injecting a whole blood sample is
all you need to do to obtain a result and prepare the analyser for the
next analysis. Sample injection via a very accurate positive
displacement pipette triggers the complete analytical cycle. A
hard-copy result is obtained on the integral printer just 32 seconds
later. The RS232 port facilitates interface with your PC database.
Subsidiary menus are reached via the YES and NO buttons which enable
the user to change calibration values, change units and perform
statistical data analysis. The display also provides self-test
diagnostics in relation to the electrode status and fluid movements.
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Analytical Performance
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Linearity
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0 - 30mmol/L using 10µl
sample, 0 - 50mmol/L using 5µl sample
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Comparison With Plasma
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Mean difference whole blood
< plasma 0.105mmol/L (human,<30mmol/L)
Mean difference whole blood < plasma 0.74mmol/L
(rat,<30mmol/L)
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Precision
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SD's range from
0.07-0.26mmol/L for human blood < 30mmol/L
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Sensitivity (Analyser)
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0.01mmol/L, 0.1mg/dl
(selectable
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Instrument
Specification:
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Method
Sensor
Reaction Temperature
Display
Printer
Statistics
Interface
Power
Dimensions
Weight
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Enzymatic oxygen-rate
Clark-type amperometric oxygen electrode
30°C
32 character backlit LCD
16 column dot matrix, 1 line/sec.
Sequential, giving Mean, S.D and C.V.
Serial data port, optional Windows software available
100-250VAC, 50-60Hz, 12-15VDC, 60VA
23cm(width) x 29cm(depth) x 15cm(height)
3.8Kg
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Ordering
Information:
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GM9D
GMRD-020
GMRD-009
GMRD-010
GMRD-011
GMRD-012
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Glucose Direct Analyser
Reagent kit for GM9D analyser, 250 tests, inc. 8mmol/L
standard
Glucose standard, 2.5mmol/L, 30ml
Glucose standard, 5.0mmol/L, 30ml
Glucose standard, 8.0mmol/L, 30ml
Glucose standard, 25.0mmol/L, 30ml
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