Справочник Пользователя для Hanna Instruments c 214
34
NITRATE
SPECIFICATIONS
Range
0.0 to 30.0 mg/L (as NO
3
-
-N)
Resolution
0.1 mg/L
Precision
±0.5@ 25.0 mg/L
Typical EMC
±0.1 mg/L
Deviation
Light Source
Light Source
Tungsten lamp with narrow band interference filter
@ 420 nm
@ 420 nm
Method
Chromotropic acid method. The reaction between
nitrate and the reagents causes a yellow tint in
the sample.
nitrate and the reagents causes a yellow tint in
the sample.
REQUIRED REAGENTS
Code
Description
Q.ty/test
Q.ty/set
*
Reagent Vial
1 vial
50 vials
HI 93766-0
Nitrate Reagent
1 packet
50 packets
*
Reagent Vial identification: N, white cap.
Note: Store the unused vials in their container in a cool and dark
place.
place.
REAGENT SET
HI 93766-50
Reagents for 50 tests
For other accessories see page 77.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is recommended
to read carefully all the instructions and the Health &
Safety Data Sheet (HSDS). Pay particular attention to all
warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
to read carefully all the instructions and the Health &
Safety Data Sheet (HSDS). Pay particular attention to all
warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
• Select the program number corresponding to Nitrate on the
secondary LCD by pressing PROGRAM t and s.
• Remove the cap from a Reagent Vial.
• Add exactly 1.0 mL of sample to
the vial, while keeping the vial at a
45-degree angle.
45-degree angle.
Nitrate
47
OXYGEN DEMAND, CHEMICAL LOW RANGE
SPECIFICATIONS
Range
0 to 150 mg/L
Resolution
1 mg/L
Precision
±4 @ 150 mg/L
Typical EMC
±1 mg/L
Deviation
Light Source
Light Source
Tungsten lamp with narrow band interference filter
@ 420 nm
@ 420 nm
Method
Adaptation of the USEPA 410.4 approved method
for the COD determination on surface waters and
wastewaters. Oxidizable organic compounds reduce
the dichromate ion (orange) to the chromic ion
(green). The amount of remaining dichromate is
determined.
for the COD determination on surface waters and
wastewaters. Oxidizable organic compounds reduce
the dichromate ion (orange) to the chromic ion
(green). The amount of remaining dichromate is
determined.
REQUIRED REAGENTS
Code
Description
Q.ty/test
Q.ty/set
*
Reagent Vial
1 vial
25 vials
---
Deionized Water
2.0 mL
optional
*
Reagent Vial identification: (no letter), red cap.
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93754A-25 Reagents for up to 24 tests
REQUIRED ACCESSORIES
C 9800-01
Hanna reactor (115 VAC)
C 9800-02
Hanna reactor (230 VAC)
HI 740216
Test tube cooling rack (25 holes)
HI 740217
Laboratory bench safety shield
For other accessories see page 77.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is recommended
to read carefully all the instructions and the Health &
Safety Data Sheet (HSDS). Pay particular attention to all
warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
to read carefully all the instructions and the Health &
Safety Data Sheet (HSDS). Pay particular attention to all
warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
Reagent Blank Correction: This method needs a reagent blank
correction. A single blank vial may be used more than once. The blank
vial is stable for several months (room temperature). For most accurate
measurement, run a blank for each set of measurements and always use
the same lot of reagents for blank and samples.
correction. A single blank vial may be used more than once. The blank
vial is stable for several months (room temperature). For most accurate
measurement, run a blank for each set of measurements and always use
the same lot of reagents for blank and samples.
COD LR