AM2 and AM3
Alcohol Analyzers

AM2 & 3


Analox Alcohol (Ethanol) Analyzers give a printed result in 20-25 seconds from injection into the analyzer using a precision positive displacement pipette, typically a Microman M10. Thus checks can be made both on manufacturing processes and determination of final product.


Applications include:
 

Beers and lagers, low-level beers, ciders

Wines and spirits

Alcoholic soft drinks ("Alcopops")

Waste-line monitoring in distilleries and industrial ethanol plants

Yeast production

Quality control of alcohol-containing consumer products
(e.g. cough mixtures, tonics, shampoos)

 

Analytical Principle:

    Oxygen consumption is measured in the reaction between sample alcohol and alcohol oxidase (AOD) using a Clark-type amperometric oxygen electrode.

    Under the assay conditions, the rate of oxygen consumption is directly proportional to alcohol concentration.

Operation:

    Sample injection via a positive displacement pipette supplied with the instrument initiates the complete analyzer cycle. A displayed and printed result is obtained approximately 20 seconds after sample injection. The analyzer then automatically prepares itself for the next sample. The 32-character word display guides the user through all operating procedures using just 2 buttons, (YES and NO), for the simplest possible control.

    Almost any aqueous material can be used. Turbidity or opacity does not present a problem. Carbonated samples are simply degassed before analysis. A brief aqueous pre-dilution (typically 10:1) may be required for concentrations above 0.5% V/V (1.5% V/V on the AM2). All accessories for accurate dilutions are provided where appropriate.

    Simple-to-use alcohol reagent kits are available in various pack sizes.

 

Analytical Performance

Accuracy - Method Comparison
vs Reference Distillation Method

y(Analox) = 1.006x + 0.005%V/V, r = 0.9998
SEP95 = 0.103(range 2-11%V/V)

Units

%V/V, mg/dl, % (Unspecified)

Precision

S.D. = 0.030%V/V @ 5.0%V/V, r = 0.085,
CV = 0.60%

Analytical Range

0-10%V/V (AM3)
0-40%V/V (AM2)
Higher ranges on the AM2 with increased dilutions

Sensitivity (analyzer)

0.01%V/V, 0.001% (selectable for very low levels)

 

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)
3.8Kg (Portable, 6Kg)

 

Ordering Information:
 

AM3
AM2
GMRD-110(I)
GMRD-110(IJ)
GMRD-112

Industrial Alcohol analyzer, 0-10%V/V
Industrial Alcohol analyzer, 0-40%V/V
Alcohol reagent kit, 50ml (70 analyzer cycles)
Alcohol reagent kit, 8 x 50ml (8 x 70 analyzer cycles)
Alcohol reagent kit, 4 x 175ml (4 x 250 analyzer cycles)

GMRD-110(X)

A range of alcohol standards at specified (x%V/V)
concentrations

GMRD-117A
GMRD-120
GMRD-119
SA4

Dilution tubes, pack of 500
Rack for dilution tubes
Degassing tubes, pack of 100
Vortex mixer unit

Other reagent kits, standards and accessories are available
please contact Analox for details