- ページ 15
計測機器 Cole Parmer 1200 SeriesのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Cole Parmer 1200 Series 18 ページ。
ページを印刷する
PSG Bulletin 1967, No. 17, page 505
1.
Make up N/100 sulfuric acid as the solvent and use part of it to make a solution
containing 120 + 0.5 mg/l of potassium dichromate.
2.
Wash out a square cuvette with solvent, and fill with solvent.
3.
Put the cuvette in the Cuvette Adapter, then into the Sample Compartment and
close the lid.
4.
Set the wavelength to 350 nm.
5.
Set the MODE button to A.
Set the reading to 0.000A using the ∧ button.
6.
7.
Empty the cuvette. Wash out with dichromate solution, and fill with dichromate
solution.
8.
Put the cuvette in the Cuvette Adapter, then into the Sample Compartment and
close the lid.
9.
Read the absorbance of the standard from the Digital Display window . The value
should be 1.288 ± 0.04 A. Refer to the notes above when interpreting the result.
Stray Light Check
Specification: Less than 0.5%T at 340 nm by ASTM E 387
A good indication as to whether the stray light level is within specification may be
obtained as follows:
1.
Set the wavelength to 340 nm.
2.
Set the MODE button to T.
3.
With the square Cuvette Adapter in the Sample Compartment, but no cuvette,
close the lid and press the ∧ button to set the display to 100.0%.
4.
Remove the Cuvette Adapter from the Sample Compartment and close the lid.
Make a note of the reading that should be at or near 0.00.
5.
Prepare a solution containing 50 mg/l of sodium nitrite (NaNO
and fill a square cuvette with this solution.
6.
Insert the cuvette into the Cuvette Adapter, place it in the Sample Compartment,
and close the lid. The display should read < 0.5%T. If the reading obtained in
step 4 is greater than 0.00, it should be subtracted from the displayed reading to
give the correct reading for the stray light value.
1200 and 1201 Parts List
15
) in distilled water
2