Table of Contents
Advertisement
Nickel
Method Performance
Nickel
Page 4 of 6
4. Snap the neck off a Nickel Voluette
5. Prepare three sample spikes. Fill three Mixing Cylinders (Cat. No. 1896-40)
with 25 mL of sample. Use the TenSette
0.3 mL of standard, respectively, to each sample and mix thoroughly.
6. Transfer 10 mL of each solution into a 10-mL sample cell and analyze as
described in the procedure. Accept each standard additions reading by
touching
. Each addition should reflect approximately 100% recovery.
Read
7. After completing the sequence, touch
the standard additions data points, accounting for matrix interferences. Touch
, then select
View: Fit
the sample spikes and the "Ideal Line" of 100% recovery.
See Section 3.2.2 Standard Additions on page 32 for more information.
Standard Solution Method
1. Prepare a 5.00-mg/L Nickel stock solution by pipetting 5.00 mL of Nickel
Standard Solution, 1000-mg/L as Ni, into a 1-L volumetric flask. Dilute to
the mark with deionized water. Prepare this solution daily.
2. Prepare a 0.5-mg/L Ni working solution by pipetting 10.0 mL of the 5.00-mg/
L nickel stock solution into a 100-mL volumetric flask. Dilute to the mark with
deionized water. Prepare this solution daily. Perform the nickel procedure as
described above.
3. To adjust the calibration curve using the reading obtained with the 0.5-mg/L
working solution, touch
.
Standard Adjust
4. Touch
. Touch
On
Adjust
concentration is used, touch the number in the box to enter the actual
concentration, then touch
See Section 3.2.4 Adjusting the Standard Curve on page 40 for more information.
Precision
Standard: 0.500 mg/L Ni
Program
340
See Section 3.4.3 Precision on page 44 for more information, or if the standard
concentration did not fall within the specified range.
Sensitivity
Portion of Curve
Entire range
See Section 3.4.5 Sensitivity on page 44 for more information.
®
Ampule Standard, 50-mg/L Ni.
®
Pipet to add 0.1 mL, 0.2 mL, and
Graph
and touch
Ideal Line
OK
on the current program menu. Touch
Options
to accept the displayed concentration. If an alternate
. Touch
.
OK
Adjust
95% Confidence Limits of Distribution
0.492–0.508 mg/L Ni
∆Abs
0.010
to view the best-fit line through
to view the relationship between
∆Concentration
0.007 mg/L Ni
Nickel_PP_Other_PAN_Eng_Ody.fm
Advertisement
Table of Contents
