Hach DR/700 - Page 593

61-37
MOLYBDENUM, MOLYBDATE, LR continued
10. Place the blank
in the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
11. Press: ZERO
The display will
count down to 0.
Then the display will
show 0.00 mg/L and
the zero prompt will
turn off.
12. Place the
developed sample in
the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
13. Press: READ
The display will
count down to 0.
Then the display will
show the results in
mg/L molybdenum.
Note: To convert results
to other units see Table 1.
Table 1. Conversion Factors
To convert reading from To Multiply by
mg/L hexavalent mg/L molybdate 1.67
molybdenum (Mo
6+
) (MoO
4
2-
)
mg/L hexavalent mg/L sodium 2.15
molybdenum (Mo
6+
) molybdate (Na
2
MoO
4
)