P-LM5 Champion
Lactate Analyser

P-LM5


The P-LM5 Champion is a dedicated portable analyser for the measurement of blood lactate. Samples can be whole blood, plasma or serum and a printed result is obtained within 20 seconds of sample injection.

The integral rechargeable battery allows the analyser to be used at track or poolside and an optional all-weather carrying case enables the P-LM5 to be operated in virtually any environment.

A mains version, the Model LM5 Champion, is also available.

Analytical Principle:

    With lactate oxidase enzyme, the analyser measures the rate of oxygen uptake and, under appropriate controlled conditions, this is directly proportional to the lactate concentration.

      Example:
      Lactate in whole blood or plasma

Operation:

    The single action of injecting a sample is all you need to obtain a result and prepare the analyser for the next analysis. Sample injection via a very accurate positive displacement pipette also triggers the complete analytical cycle. A hard-copy result is then obtained within 20 seconds of sample introduction. The analyser is first calibrated with a known lactate standard.

    Samples can be whole blood, plasma, serum or other biological fluids. Whole blood samples are collected in Analox capillaries or tubes containing heparin, fluoride and nitrite. Analyses are menu-driven via the 32-character display which guides the operator through the complete procedure. Subsidiary menus are reached via YES and NO buttons which enable the user to change calibration values, optimise operational modes, utilise special functions and perform statistical data analysis. The display also provides self-test diagnostics in relation to sensor electrode status and fluid movements.

 

Analytical Performance

Linearity

0-10mmol/L using 5µl sample, 0-20mmol/L using 2.5µl sample

Accuracy (Recovery)

Plasma, mean 99.25% (96-104%)
range 2.5-10.0mmol/L

Whole blood, mean 97% (88-104%)
range 3.5-11.0mmol/L

Accuracy
(Method Comparison)

Plasma, vs Boehringer UV
y = 0.967x + 0.003; n = 20, r = 0.997

Whole blood, (non lysed), vs YSI23L
y = 1.017x - 0.087; n = 56, r = 0.998
Whole blood (lysed), vs Sigma UV
y = 0.992x - 0.049; n = 24, r = 0.996

Precision

Plasma, n = 30
CV = 0.6% at 10.0mmol/L

Whole blood, n = 22
CV = 1.68% at 5.0mmol/L

Sensitivity

0.1mg/dl, 0.01%mmol/L (selectable)

 

Instrument Specification:
 

Method
Sensor
Reaction Temperature
Display
Printer
Statistics
Interface
Power
Dimensions
Weight

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)
6Kg

 

Ordering Information:
 

P-LM5 Portable
LM5 Mains
GMCC-098

Portable analyser, rechargeable battery/mains
Analyser, mains version
All-weather carrying case

GMRD-090/093/092

Lactate reagent for intact whole blood - 100, 250 and 1000 analyser
cycles respectively, including 8.0mmol/L standard

GMRD-100/103/102

Lactate reagent for lysed whole blood - 100, 250 and 1000 analyser
cycles respectively, including 8.0mmol/L standard

GMRD-074
GMRD-053/054
GMRD-050
GMRD-055/056

Lactate quality control, 4 x 0.5ml
Blood collection capillaries, pack of 500 and 1000 respectively
Record cards for collection capillaries, pack of 40
Closures for collection capillaries, pack of 100 and 500 respectively

Specialised blood collection systems and accessories are available – please contact Analox for details