Media Codes

"Media Codes" are numbers that correspond to a type of analysis for a specific media (solid, water, gas, etc.).

Only one media code can be used per submission file.

Media Code descriptions are for isotopes unless otherwise stated.

Quantitative
Media Code Element(s) Desired Service
21 dissolved gases - all concentrations of  N2, O2, CH4, CO, CO2, C1-C5 dissolved in water
40 C ppmC of toc/doc (concentrations) in FRESH water & tic/dic SAL & FRESH
56 NCHS %NCHS - Elemental concentrations of solids or liquids
57 NCS %NCS - Elemental concentrations of solids or liquids
58 NC %NC - Elemental concentrations of solids or liquids
59 O %O - Elemental concentrations of solids or liquids
67 C ppmC of toc/doc (concentrations) in SALINE water
132 gas mixture - all concentrations of He, H2, N2, O2, CH4, CO, CO2, C1-C5, in a gas
135 gas mixture - N2O concentration of N2O in a gas mixture

 

Carbonate Isotopes
Media Code Element(s) Desired Service
45 C &/or O Isotopes of calcite
46 C &/or O Isotopes of dolomite/ankerite (specify in comments)
47 C &/or O Isotopes of siderite
48 C &/or O Isotopes of magnesite
49 C &/or O Isotopes of other mineral (specify in comments)

 

Hydrogen Isotopes
Media Code Element(s) Service desired
1 H & O Isotopes of "fresh" water (salinity less than 3PSU) (Temporarily Unavailable)
4 H - only Isotopes of "saline" or contaminated water (salinity greater than 3PSU)
6 H & O Isotopes of "saline" or contaminated water (salinity greater than 3PSU)
12 H Isotopes of dissolved methane gas (pure or in a mix)
14 H Isotopes of dissolved ethane gas (pure or in a mix)
16 H Isotopes of dissolved propane gas (pure or in a mix)
30 H - only Isotopes of organic solids (bulk analysis)
33 H - only Isotopes of organic solids (exchange method)
34 H Isotopes of organic liquids (GC)
82 H - only Isotopes of inorganic solids
102 H - only Isotopes of pure hydrogen gas
123 H - only Isotopes of methane gas
125 H - only Isotopes of ethane gas
127 H - only Isotopes of propane gas
Carbon Isotopes
Media Code Element(s) Desired Service
11 C Isotopes of dissolved methane gas
13 C Isotopes of dissolved ethane gas
15 C Isotopes of dissolved propane gas
19 C - only Isotopes of dissolved CO2 (other than tictoc / dicdoc)
22 C - only Isotopes of organic solids
23 C & N Isotopes of organic solids
28 C - only Isotopes of organic liquids
29 C & N Isotopes of organic liquids
41 C toc/doc isotopes of fresh waters (< 12 PSU)
42 C tic/dic isotopes of fresh or saline waters
44 C Isotopes of inorganic solids (graphite)
68 C toc/doc isotopes of saline waters (> 12 PSU)
69 C toc/doc isotopes of enriched saline waters (> 12 PSU)
100 C & O Isotopes of CO2 in air
120 C & O Isotopes of pure CO2 in break seals
121 C Isotopes of CO2 (low concentrations; gc/pre-con)
122 C Isotopes of methane gas
124 C Isotopes of ethane gas
126 C Isotopes of propane gas

 

Nitrogen Isotopes
Media Code Element(s) Service Desired
23 C & N Isotopes of organic solids  EA)
50 N - only Isotopes of organic solids (EA)
51 N - only Isotopes of compound specific organic liquids (GC)
52 N - only Isotopes of inorganic solids or liquids (EA)
53 N - only

Isotopes of organic liquids (EA)

101 N Isotopes of N2 gas
131 Ar & N & O Isotopes of gaseous air (gasbench)
Oxygen Isotopes
Media Code Element(s) Service Desired
1 H & O Isotopes of fresh (less than 3PSU) waters (LGR) (Temporarily Unavailable)
5 O-only Isotopes of saline or contaminated waters (gasbench)
6 H & O Isotopes of saline or contaminated waters (gasbench)
32 O Isotopes of organic solids (EA)
81 O Isotopes of inorganic solids (excludes silicates)
86 O (18O & 17O) Isotopes of dissolved oxygen (gasbench)
100 C & O Isotopes of CO2 in air (gasbench)
120 C & O Isotopes of CO2 (in break seals)
131 Ar & N & O Isotopes of gaseous air (gasbench)

 

Sulphur Isotopes
Media Code Element(s) Service Desired
60 S Isotopes of sulphides (EA)
61 S Isotopes of inorganic S in whole rock or sediment
63 S Isotopes of organic S in solids (EA)
70 S Isotopes of sulphates (EA)
103 S Isotopes of SO2 gas

 

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