Turbidimetry via parallel photometric analysis.  Determination of sulfate

Coleman, R. L.; Shults, W.D.; Kelley, M.T.; Dean, John A.

doi:10.1021/ac60314a024

Cited by 18 publications

(8 citation statements)

References 14 publications

(4 reference statements)

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“…, which is measured turbidimetrically (Coleman et al, 1972;US EPA, 1986;Kolmert et al, 2000). As a consequence, the precipitation is often carried out using centrifuged or filtered samples.…”

Section: Sulfate and Sulfidementioning

confidence: 99%

“…In addition to these methods, which are used a lot, there are also simple assays. For sulfate, barium sulfate precipitation is a very simple assay that uses the low solubility of this salt [solubility at 20°C = 2.42⋅10 –3 g⋅L –1 − Ksp = 1.0842⋅10 –10 (25°C)], which is measured turbidimetrically ( Coleman et al, 1972 ; US EPA, 1986 ; Kolmert et al, 2000 ). As a consequence, the precipitation is often carried out using centrifuged or filtered samples.…”

Section: Electron Acceptor Consumption Ratementioning

confidence: 99%

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A Review of Methods to Determine Viability, Vitality, and Metabolic Rates in Microbiology

et al. 2020

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Viability and metabolic assays are commonly used as proxies to assess the overall metabolism of microorganisms. The variety of these assays combined with little information provided by some assay kits or online protocols often leads to mistakes or poor interpretation of the results. In addition, the use of some of these assays is restricted to simple systems (mostly pure cultures), and care must be taken in their application to environmental samples. In this review, the necessary data are compiled to understand the reactions or measurements performed in many of the assays commonly used in various aspects of microbiology. Also, their relationships to each other, as metabolism links many of these assays, resulting in correlations between measured values and parameters, are discussed. Finally, the limitations of these assays are discussed.

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Section: Sulfate and Sulfidementioning

confidence: 99%

Section: Electron Acceptor Consumption Ratementioning

confidence: 99%

A Review of Methods to Determine Viability, Vitality, and Metabolic Rates in Microbiology

et al. 2020

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“…The turbidity method, on the other hand, although relatively fast, produces inaccuracies stemming both from homogeneity of particle size and uneven particle distribution in the suspension (Coleman et al, 1972). Usually the sulfate is precipitated via addition of excess barium chloride, but other precipitating agents have also been investigated, for example 4-amino-4 0 -chlorodiphenyl hydrochloride (CAD) (Coleman et al, 1972).…”

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confidence: 99%

“…Usually the sulfate is precipitated via addition of excess barium chloride, but other precipitating agents have also been investigated, for example 4-amino-4 0 -chlorodiphenyl hydrochloride (CAD) (Coleman et al, 1972). Even with different precipitation agents, however, the problems connected to homogeneity remain.…”

mentioning

confidence: 99%