28
General Procedure
14. In the remaining M end of the collector tube, dilute to the 6.0 mL
mark with deionized water, or dilute to 10 mL. This results in the
original sample volume.
15. Shake the tube with a gentle whipping motion to mix in diluent
water (Figure 11). Do not invert it. With the
M end down, place
the tube into the collector tube rack (Figure 7 on page 27).
16. Determine the solution in the tube with a Lachat QuikChem
Method. There is enough distillate for two 25 second sample
periods. Seal both ends of the tube with Parafilm if the sample
will not be determined immediately..
Figure 9 Breaking the ‘D’ End of the Collector Tube
Figure 10 Discarding the ‘D' End
Figure 11 Shaking the Tube
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