Aztec 600 aluminium, ammonia, color, iron, manganese, phosphate
Single- and multi-stream colorimetric analyzers
Appendix A – Reagents
IM/AZT6CR–EN Rev. J
77
Appendix A – Reagents
A.1 Reagent Solutions
A standard set of reagents for an Aztec 600 analyzer (except an
Aztec 600 color analyzer) comprises 3 reagents (5 l of each) and
a high calibration standard (2.5 l). The Aztec 600 color analyzer
does not use reagents for measurement; a high calibration
standard is used only for automatic calibration.
Because the usage of de-ionised water depends on the
measurement range (see Table A.1) this is supplied separately
and available in 10 or 25 l sizes.
The default calibration standards are selected to give accurate
results across the most frequently used measurement ranges.
A.1.1 Reagent Storage
Store reagents in their original packaging, in a cool, dry, well
ventilated environment.
2 types of reagent bottle kit are available from ABB – see
Appendix F.3, page 96.
A.2 Reagent Consumption
The reagent usage depends on how many samples an hour are
measured.
Typically 0.75 ml of each reagent is used per determination.
Warning.
Ensure personal protective equipment (PPE) such as
gloves
and
eye protection
are worn during any
maintenance and that any spillages are cleaned-up.
Observe all health and safety procedures for handling
chemicals.
Aztec 600
Analyzer
Reagent 1
(5 l)
Reagent 2
(5 l)
Reagent 3
(5 l)
Standard
(2.5 l)
Aluminium
Acid
Buffer
Color
0.2
ppm Al
Ammonia
Color
Catalyst
Alkaline
Reagent
0.35
ppm NH
3
(0.288 ppm
NH
3
-N)
Color
N/A
N/A
N/A
50 Hazen
(50 mg/l
Pt-Co)
Iron
Acid
Buffer
Color
0.2
ppm Fe
Manganese
Buffer
Color
Complexing
Agent
0.5
ppm Mn
Manganese
Low Range
Preconditioner
Buffer/
Oxidizing
Agent
Color
0.1
ppm Mn
Phosphate
Acid
Molybdate
Reagent
Reducing
Agent
N/A
1 ppm PO
4
-P
(3.066 ppm
PO
4
)
Table A.1 Reagent Sets/Standard Measurement Range
Note.
Do not use reagents outside their shelf life.
The following reagents are sensitive to light and must
be stored in dark bottles:
–
Ammonia – Reagents 2 and 3
–
Low Range Manganese – Reagent 3
Contact with visible, ultraviolet or infrared radiation
shortens the shelf life of these reagents.
Samples Measured Per Hour
Duration of Reagent Set
(Days)
1
240
2
120
3
80
4
60
5
50
6
40
Table A.2 Reagent Consumption
