Total nitrogen Lake Bidighinzu

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Basic Information
Related Site
Lago Bidighinzu - Italy
Abstract
Average values along the water column of total phosphorus collected in the Lake Bidighinzu
Contact
Bachisio Mario Padedda
Owner/Creator
Bachisio Mario Padedda
Metadata Provider
Bachisio Mario Padedda
UUID
c687cb20-585a-4d7b-a668-15a3bc52928b
Dates
Date Range
-
Post date
Friday, December 11, 2020 - 10:38
Last modified
Wednesday, July 21, 2021 - 13:41
Geographic
Show details for observation location(s):
Lake Bidighinzu
Additional information
Method Description
The organic compounds containing nitrogen and phosphorus are simultaneously oxidized to nitrate and orthophosphate with the oxidizing mixture potassium persulfate, boric acid and sodium hydroxide; oxidation is simultaneous thanks to the variation between pH 9.7 and 5 obtained during oxidation by the boric acid - sodium hydroxide system. After oxidation, the total nitrogen is determined by direct reading of the nitrate at the wavelength of 220 nm, this determination is possible only on the oxidized sample because the oxidation disrupts the interfering organic compounds on the reading at 220 nm.
Sampling Time Unit
monthly
Sampling Time Span
monthly
Parameters
chemical parameter
Spatial Design
vertical profile
Intellectual Rights
Co-authorship on publications resulting from use of the dataset
Spatial Scale
plot