Dumarey equation. Mercury vapour standard concentration ng/ml.

J E Patterson - jepspectro.com - 20231119

Description


Mercury vapour calibration

Elemental mercury vapour in air: The origins and validation of the 'Dumarey equation' describing the mass concentration at saturation

Enter temperature in °C of mercury calibration vessel, GSB A

The mercury vapour concentration in air is displayed in ng/ml

The Dumarey equation is: Hg ng/ml = D/T10-(A+(B/T))
T is the temperature in °K
A = -8.134459741
B = 3240.871534
D = 3216522.61

Reference: R. Dumarey, E. Temmerman, R. Dams, J. Hoste, Analyt. Chim. Acta 170, 337 (1985)

Program Resources

Labels

Name Description
 A Enter temperature °C into A

Storage Registers

Name Description
 1 Temperature °C
 2 Mercury vapour concentration ng/ml

Program

Line Display Key Sequence Line Display Key Sequence Line Display Key Sequence
000 018 5 5 036 16 CHS
001 42,21,11 f LBL A 019 3 3 037 13 10ˣ
002 2 2 020 4 4 038 3 3
003 7 7 021 45 1 RCL 1 039 2 2
004 3 3 022 10 ÷ 040 1 1
005 48 . 023 8 8 041 6 6
006 1 1 024 48 . 042 5 5
007 5 5 025 1 1 043 2 2
008 40 + 026 3 3 044 2 2
009 44 1 STO 1 027 4 4 045 48 .
010 3 3 028 4 4 046 6 6
011 2 2 029 5 5 047 1 1
012 4 4 030 9 9 048 20 ×
013 0 0 031 7 7 049 45 1 RCL 1
014 48 . 032 4 4 050 10 ÷
015 8 8 033 1 1 051 44 2 STO 2
016 7 7 034 16 CHS 052 43 32 g RTN
017 1 1 035 40 +