Non-toxic total nitrogen determination using a low alkaline persulfate digestion
نویسندگان
چکیده
منابع مشابه
Determination of total nitrogen in aqueous samples using persulfate digestion
Determination of total nitrogen in aqueous samples after potassium persulfate digestion compared favorably in both precision and nitrogen recovery with determinations obtained using Kjeldahl digestion. The determination of total nitrogen (TN = inorganic and organic fixed nitrogen) has largely depended either on acid Kjeldahl digestion ( cf. Strickland and Parsons 1972) or on photo-oxidation (Ar...
متن کاملDetermination of Total Nitrogen and Phosphorus in Wastewaters by Alkaline Persulfate Digestion Followed by IC
Introduction Excess use of nutrients over the last several decades has caused significant water quality and health issues on a global scale. In the U.S., the impact of nutrient pollution has been identified as one of the most widespread, costly, and challenging environmental problems in the 21st century.1 Nutrient pollution causes excess algae growth (i.e., algal blooms) over large bodies of wa...
متن کاملTotal nitrogen determination
As a preliminary to the consideration of automated, or more correctly mechanized, methods for the determination of total organic nitrogen the discussion of some general aspects of nitrogen determination is illuminating. There are at least four recent reviews, for example those by Bradstreet (1965), Fleck & Munro (I965), Jacobs (1965), and Munro & Fleck (1969), of the determination of nitrogen f...
متن کاملDetermination of dissolved organic nitrogen in seawater using Kjeldahl digestion after inorganic nitrogen removal
RÉSUMÉ M. D. DOVAL *,Fernando FRAGA and Fiz F. PEREZ Instituto de Investigaciones Marinas de Vigo (CSIC), Eduardo Cabello, 6, E-36208 Vigo, Spain. * Corresponding author. E-mail:[email protected] Received 15/02/96, in revised form 04/12/96, accepted 16/01/97. An update of the Kjeldahl method is presented for the direct determination of dissolved organic nitrogen (DON) in seawater. Dissolved in...
متن کاملThe effects of post-persulfate-digestion procedures on total phosphorus analysis in water.
There are differences between the EPA Method 365 and the APHA-AWWA-WEF's Standard Method 4500 with respect to the post-digestion treatment procedures of the persulfate-digested water. The effects on total phosphorus analysis of different post-digestion treatment procedures, such as neutralization and reacidification, and shaking/settling, were investigated in this study using the total phosphor...
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ژورنال
عنوان ژورنال: MethodsX
سال: 2020
ISSN: 2215-0161
DOI: 10.1016/j.mex.2020.100791