Comparison of Nessler, phenate, salicylate and ion selective electrode procedures for determination of total ammonia nitrogen in aquaculture

Li, Zhou; Boyd, Claude E.

doi:10.1016/j.aquaculture.2015.07.022

Cited by 197 publications

(119 citation statements)

References 23 publications

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“…The multiple data points for the treatments in the off‐site show that these elevated concentrations were more accurate than the on‐site values measured with a probe. Zhou and Boyd () stated that the use of the ammonia ion selective electrode is strongly affected by sodium and potassium, thus the electrodes are not recommended for waters with high salinity. However, researchers still use and rely on TAN measurements using an ion selective probe in seawater (Morris, Samocha, Davis, & Fox, ; Ray & Lotz, ).…”

Section: Resultsmentioning

confidence: 99%

Effects of different feed management treatments on water quality for Pacific white shrimp Litopenaeus vannamei

et al. 2017

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Increasing feeding rates may provide an increase in production, thus nutrients such as nitrogen, phosphorus and organic matter will also increase. These nutrients promote a greater oxygen demand and concentrations of toxic metabolites which can lead to frequent problems with low dissolved oxygen and an abundance of bluegreen algae. Four feed management practices were evaluated among sixteen 0.1 ha ponds culturing Pacific white shrimp (Litopenaeus vannamei). Feeding treatments included hand feeding using the Standard Feeding Protocol (SFP), SFP plus 15% from 8 to 16 weeks, an automatic-solar timer which fed SFP+15%, and an AQ1 acoustic demand feeder allowing up to 12 kg/dayÁpond based on shrimps feeding response. Samples were analysed at weeks 0, 4 and 8-16 for the following parameters: chlorophyll a, total ammonia nitrogen, nitrite-nitrogen, nitrate-nitrogen, total nitrogen, total phosphorus, soluble reactive phosphorus, total suspended solids, total suspended volatile solids, turbidity, conductivity, salinity and biological oxygen demand. Samples were collected and shipped overnight to Auburn, Alabama for offsite analysis. On-site water quality was also obtained at the farm. The AQ1 acoustic demand feeder produced the most shrimp with a yield of 4,568 kg/ha; however, the AQ1 also had the highest total ammonia nitrogen and nitrite-nitrogen levels late in the growing season. The AQ1 feeder may be a viable, reduced labour and cost alternative for the shrimp commercial industry; however, such technologies must also be matched to the ability of the production system to process nutrients.

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Section: Resultsmentioning

confidence: 99%

Effects of different feed management treatments on water quality for Pacific white shrimp Litopenaeus vannamei

et al. 2017

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“…However, sodium and potassium will produce serious interference on the determination by ammonia sensitive electrode method. The determined value of ammonia sensitive electrode method was 2.7 ~ 8 times higher than that of salicylic acid spectrophotometry because of the presence of potassium and sodium [5].…”

Section: Electrode Methodsmentioning

confidence: 99%

“…Solórzano et al [4] shows that the color of indophenol -blue may become yellow or green, which will make the result unreliable, and this phenomenon was also proved in Zhou's study [5].…”

Section: B Indophenol Blue Spectrophotometric Methodsmentioning

confidence: 99%

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Ammonia Nitrogen Speciation Analysis in Aquatic Environments

Liu¹,

Xu²,

Guo³

et al. 2017

Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016)

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Abstract-The accurate measurement of different species of ammonia nitrogen is essential to understanding of the selfpurification and pollution status of water system as well as revealing the aquatic ecological environment. In the paper, the analytical methods for ammonia nitrogen species in aquatic environments on spectrophotometry, distillation-titration method, chromatographic analysis, gas phase molecular absorption spectrometry, electrode method, flow-injection analysis were systematically summarized. The principle of the mentioned methods, scope of applications and the different influence factors were discussed, and the new trend in the future was also pointed out.

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“…Soil solution samples were filtered through 0.45 μm membrane filters, and the concentrations of metals, in particular Cu, Zn, and Pb, were determined by flame atomic absorption spectroscopy (FAAS). Soil solution pH was measured potentiometrically, N-NH 4 + concentrations were determined with Nessler reagent [18], and DOC in soil solutions using Merck tests by spectrophotometric method [19] (as in soil extracts). For selected samples of soil solution, a more comprehensive analysis was performed to measure the concentrations The concentrations of main components in soil solutions obtained from direct measurements were used to model metal speciation using the Visual MinteQ v. 3.1 program [20].…”

Section: Incubation Experimentsmentioning

confidence: 99%

Speciation of Cu, Zn, and Pb in Soil Solutions Extracted from Strongly Polluted Soils Treated with Organic Materials

Cuske

Karczewska

Gałka

2017

Pol. J. Environ. Stud.

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Comparison of Nessler, phenate, salicylate and ion selective electrode procedures for determination of total ammonia nitrogen in aquaculture

Cited by 197 publications

References 23 publications

Effects of different feed management treatments on water quality for Pacific white shrimp Litopenaeus vannamei

Effects of different feed management treatments on water quality for Pacific white shrimp Litopenaeus vannamei

Ammonia Nitrogen Speciation Analysis in Aquatic Environments

Speciation of Cu, Zn, and Pb in Soil Solutions Extracted from Strongly Polluted Soils Treated with Organic Materials

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