Evaluation of a persulfate digestion method for particulate nitrogen and phosphorus

Langner, Christine L.; Hendrix, Paul F.

doi:10.1016/0043-1354(82)90243-3

Cited by 79 publications

(38 citation statements)

References 11 publications

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“…Data plotted in figure 5 indicate that complete oxidation of ammonium to nitrate was achieved for OC concentrations up to 150 mg/L. Similar results have been reported previously (Langer and Hendrix, 1982;Cabrera and Beare, 1993). OC in surface-and ground-water samples analyzed at the NWQL rarely exceeds 150 mg/L.…”

Section: Analytical Performancesupporting

confidence: 76%

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Evaluation of alkaline persulfate digestion as an alternative to Kjeldahl digestion for determination of total and dissolved nitrogen and phosphorus in water

Patton¹,

Kryskalla²

2003

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Section: Analytical Performancesupporting

confidence: 76%

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Evaluation of alkaline persulfate digestion as an alternative to Kjeldahl digestion for determination of total and dissolved nitrogen and phosphorus in water

Patton¹,

Kryskalla²

2003

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“…For example orchard leaves gave recoveries of 80-90% for TP and TN [91]. Higher recoveries can be obtained by decreasing the ratio of sample to peroxydisulfate [92].…”

Section: Alkaline Peroxydisulfatementioning

confidence: 99%

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Worsfold

Gimbert

Mankasingh

et al. 2005

Talanta

162

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“…Soluble reactive P (SRP) in the filtrate was analyzed by the ascorbic acid-molybdate method of Murphy and Riley (1962). Total dissolved P (TDP) was determined by a modification of the oxidation method described by Lagler and Hendrix (1982) and Valderrama (198 1). Dissolved organic P (DOP) was calculated as the difference between TDP and SRP.…”

Section: Methodsmentioning

confidence: 99%

Nutrient limitation of bacterioplankton growth in Lake Dillon, Colorado

1992

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Bacterioplankton biomass, production, and growth rate were measured over a 2-yr period in Lake Dillon, a mesotrophic Colorado reservoir. In addition, a multivariate statistical analysis and nutrient addition experiments were used to analyze the regulation of bacterioplankton growth in situ. Biomass ranged between 170 (winter) and 2,200 mg C m-* (summer); production ranged from 10 (winter) to 625 mg C m-* d-* (summer); annual bacterioplankton production was 47 g C m-2 yr-l in 1987 and 67 in 1988. Population growth rates ranged between 0.001 and 0.08 1 h I. Growth rates in the epilimnion were substantially below estimated potential rates, suggesting severe nutrient limitation during the period of stratification. Population growth rates were highly correlated with P concentrations but not with dissolved organic C concentrations. Bacterioplankton growth in the summer epilimnion responded strongly to the addition of P alone or in combination with N or labile organic C. The field data show that bacterioplankton arc frequently without suflicient nutrients to sustain maximum growth; the experimental and statistical analysts indicate that P, rather than organic C, is the critical nutrient for bacterioplankton growth in this lake.

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Evaluation of a persulfate digestion method for particulate nitrogen and phosphorus

Cited by 79 publications

References 11 publications

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Evaluation of alkaline persulfate digestion as an alternative to Kjeldahl digestion for determination of total and dissolved nitrogen and phosphorus in water

Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Evaluation of alkaline persulfate digestion as an alternative to Kjeldahl digestion for determination of total and dissolved nitrogen and phosphorus in water

Sampling, sample treatment and quality assurance issues for the determination of phosphorus species in natural waters and soils

Nutrient limitation of bacterioplankton growth in Lake Dillon, Colorado

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