NIC-600-2233-06
8
7.5. Measurement of Unknown samples
(1) Enter the sample name and the sample amount. Select the sample form and unit etc on the
“Table Condition” by clicking .
(2) Select the heating method in “Method Number.” If the moisture content is known as for solid
samples, enter it in “MOIST [%]” so that the concentration is calculated as “dry weight.”
(3) After checking
“Sample Number” with
, click or press “F5” to start measuring.
Selection for (Heating) Method
Select a heating method
(12 Methods)
can be registered in “Run - Method set” as Heating Method.
5 Methods are installed by default as described below.
Heating Method table
Method
No,
Kind of sample
Heating Method
Typical
amount
0
Liquid sample /Standard solution
Liquid sample with additive B
STD
~
200μL
1
Biological sample
(Solid)
Fish tissue, plant tissue
ORGANISM
(SOLID)
~200 mg
2
Soil, sediment & sludge
SOIL & SLUDGE
~200 mg
3
Urine, Blood
URINE & BLOOD
~
200μL
4
Plastics
PLASTICS
~100 mg
5
Minerals
Coal, coal ash, metal and mineral
MINERAL
~200 mg
6
Waste water
WASTE WATER
~2
00μL
7
Purge
PURGE
-
※
Do not measure the sample digested by HNO
3
directly. This sample may generate heat on the
activated carbon filter. Dilute it less than 5wt% of HNO
3
.
※
As for HCl solution, dilute it less than 1wt%.
※
The above “Heating Methods” may not cover the samples which contain a lot of halogens or burn
quickly.
When the check standard after measuring is lower, reduce the sample size.
※
Dilute or reduce the sample size if it contains high mercury. Otherwise it contaminates the
plumbing.
※
As for the liquid samples c
ontaining organic mercury, use “Additive B” on the boat.
