Rapid Colorimetric Method for Nitrates

Swann, M. H.; Adams, Martha L.

doi:10.1021/ac60118a038

Cited by 19 publications

(8 citation statements)

References 6 publications

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“…The plate was incubated for 72 h at 37°C allowing the microorganisms to form biofilm at the vinyl V bottom of the plate. After successful incubation, the liquid was washed off the plate; three different series of both E. coli and PSIM biofilms were prepared in different wells and were allowed to form with five different concentrations of nutrient broth (1 mg/mL, 2 mg/mL, 3 mg/ mL, 4 mg/mL, and 5 mg/mL, respectively) for a week at 34°C [24][25][26].…”

Section: Biofilm Formation Using 96 Well Microtiter Platementioning

confidence: 99%

Ex-situ biofilm mediated approach for bioremediation of selected heavy metals in wastewater of textile industry

Kumar¹,

Shivani²,

Krishan³

et al. 2022

J App Biol biotech

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Industrialization plays a major role in strengthening the economy of any country. However, these industries directly or indirectly affect the environment. Industrial wastewater discharge has been reported with certain heavy metals such as chromium, lead, cobalt, and others which are a potential hazard to the water bodies and humans as well. Biofilm is an applied method in the fields of bioremediation for reliving this emerging problem and in the efficient removal of heavy metals from wastewater. Biofilms of Escherichia coli and petroleum soil isolated microorganisms (PSIM) were developed at the V bottom of 96 well microtiter plate. The contaminated water sample was collected from the textile industry, Solan, Himachal Pradesh, India. The biofilms were incubated with the industrial water tested for heavy metals assuming the microbes have the potential to assimilate the heavy metals up to 5 mg/mL of concentration. After the incubation for 1-2 weeks, the microorganisms were able to reduce the level of heavy metals present in the samples which was conveyed by biomass comparison of microorganisms in the successive intervals of time. 0.74 × 10 10 cells/mL and 0.77 × 10 10 cell/mL of E. coli and PSIM biofilms were able to tolerate the metal toxicity on incubation for 2 weeks at the highest concentration due to the functional group present extracellular polymeric substance which forms complexes with heavy metals. This leads to the fact that these biofilms have assimilated the heavy metals and are potent for the removal of heavy metals from industrial wastewater.

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Section: Biofilm Formation Using 96 Well Microtiter Platementioning

confidence: 99%

Ex-situ biofilm mediated approach for bioremediation of selected heavy metals in wastewater of textile industry

Kumar¹,

Shivani²,

Krishan³

et al. 2022

J App Biol biotech

View full text Add to dashboard Cite

show abstract

“…They determined the HN03 colorimetrically after reduction with FeS04, as the complex Fe(NO)+2. This reaction has also been used for the determination of HNOs and HN02 ($) and some organic nitrates (1,6).…”

Section: Semel Laccetti and Roth (3) Basedmentioning

confidence: 99%

Titrimetric Determination of Hexahydro-1,3,5-trinitro-s-triazine (RDX) and Octahydro-1,3,5,7-tetranitro-s-tetrazine (HMX) with Ferrous Sulfate

Simecek¹

1961

Anal. Chem.

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“…Recently, Swann and Adams (11) described a colorimetric method for nitrocellulose based on the classical brown-ring test for nitrates.…”

Section: Determinationsmentioning

confidence: 99%

“…The intensity of the color produced by this reaction is quantitative for some organic as well as inorganic Nitrites and thiosulfates interfere with color development, but chromates, dichromates, sulfates, phosphates, chlorates, sulfites, acetates, and halogens do not (11). REAGENTS Ferrous Ammonium Sulfate.…”

Section: Determinationsmentioning

confidence: 99%

Colorimetric Determination of Hexahydro-1,3,5-trinitro-s-triazine and Octahydro-1,3,5,7-tetranitro-s-tetrazine in Admixtures

Semel¹,

Laccetti²,

Roth³

1959

Anal. Chem.

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Rapid Colorimetric Method for Nitrates

Cited by 19 publications

References 6 publications

Ex-situ biofilm mediated approach for bioremediation of selected heavy metals in wastewater of textile industry

Ex-situ biofilm mediated approach for bioremediation of selected heavy metals in wastewater of textile industry

Titrimetric Determination of Hexahydro-1,3,5-trinitro-s-triazine (RDX) and Octahydro-1,3,5,7-tetranitro-s-tetrazine (HMX) with Ferrous Sulfate

Colorimetric Determination of Hexahydro-1,3,5-trinitro-s-triazine and Octahydro-1,3,5,7-tetranitro-s-tetrazine in Admixtures

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