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UOP 981-11
Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
STANDARD published on 1.6.2011
The information about the standard:
Designation standards: UOP 981-11
Note: WITHDRAWN
Publication date standards: 1.6.2011
SKU: NS-575042
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards UOP
Preview of the standard UOP 981-11
| 1. Scope |
| This method is for determining nitrogen in liquid hydrocarbons at concentrations ranging from 50 to 300 ng/g (mass-ppb). This method is applicable to highly volatile samples, such as pentane, through the use of a cooled sampling system. Higher concentrations can be determined by ASTM Method D4629, "Trace Nitrogen in Liquid Petroleum Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection," D6069, "Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection," and D7184,"Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection," using the cooled sampling system described herein for highly volatile matrices. Halogens and sulfur interfere at concentrations greater than approximately 1%. |
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