Hach DR2400 - Page 744

Sulfate
Sulfate
Page 2 of 4
Sulfate_UniCell_Turb_Eng_Ody.fm
Interferences
The ions listed in the following table have been individually tested up to the
given concentrations. Cumulative effects and the influence of other ions have
not been evaluated.
5. Touch the timer icon.
Touch
OK.
A 30 second reaction
period will begin.
6. Wipe the outside of
the zero (white cap) and
sample vials with a damp
towel, followed by a dry
one, to remove
fingerprints or other
marks.
7. Install the 16-mm cell
adapter.
Note: See Section 2.6 Sample
Cell Adapters in the Instrument
Manual for adapter installation
details.
When the timer beeps,
place the zero vial into the
cell adapter.
8. Touch Zero.
The display will show:
0 mg/L SO
4
2–
Underrange
9. Place the sample into
the cell adapter.
Touch
Read.
Results will appear in
mg/L SO
4
2–
.
HRS MIN SECHRS MIN SEC
Zero
Interfering Substance No interference up to:
K
+
, Na
+
2000 mg/L
Ca
2+
, NO
3
–
, Cl
–
1000 mg/L
Cd
2+
, Cr
3+
, Cu
2+
, Fe
2+
, Fe
3+
, Mg
2+
, Mn
2+
,
NH
4
+
, Ni
2+
, Si
2+
, Sn
2+
, Zn
2+
500 mg/L
Al
3+
, Pb
2+
, Hg
2+
, PO
4
3–
, CO
3
2–
, I
–
, CN
–
, NO
2
–
50 mg/L
Cr
6+
20 mg/L
Ag
+
2.5 mg/L