EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The use of total ionic strength adjusting buffers in determining fluoride concentration in soil solutions by ion selective electrometry


, : The use of total ionic strength adjusting buffers in determining fluoride concentration in soil solutions by ion selective electrometry. Communications in Soil Science & Plant Analysis 24(15-16): 1865-1882

Total ionic strength buffers based on citrate at pH 7.5 and cyclohexylenediaminetetra-acetic acid (CDTA) at pH 5.2 were evaluated for use when determining fluoride (F) concentration in soil solutions. Both buffers achieved acceptable recoveries of F added to ultra-filtered (0.025 mu-m) solutions. Recovery of F added to unfiltered and 0.22 mu-m filtered solution was low when the CDTA buffer was used. This effect was attributed to the adsorption of F by micro-particulate materials present in these samples. The use of this buffer would need to be restricted to samples in which micro-particulates were not present. The performance of the citrate buffer was not affected by the presence of microparticulates; however, electrode response times, and departure from Nernstian response at low F concentrations, were greater when this buffer was employed. Fluoride was found to be present at low concentrations in the soil solution of the 60 virgin highly weathered soils tested. The F concentration in 75% of the surface samples was lt 3 mu-M, while all subsoil samples had soil solution F concentrations lt 1 mu-M.

(PDF same-day service: $9.90)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002530668

DOI: 10.1080/00103629309368924

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Hamfeldt, B., 1917: Kleinschnutterlinge aus den Faroern. Arkiv for Zoologi Stockholm, 10(No. 25: 9

Eerola E.; Jalkanen S.; Granfors K.; Toivanen A., 1984: Immune capacity of the chicken bursectomized at 60 hours of incubation effect of bursal epithelial cells and bursal epithelium conditioned medium on the production of immuno globulins and specific antibodies in vitro. Cells from chickens bursectomized at 60 h of incubation (Bx) are known to produce Ig without any detectable antibody specificity. Cells from Bx birds were cultured together with bursal epithelial cells (BE) or bursal epithelium-conditioned medium...

McCloskey, L.A.; Lichter, E.; Ganz, M.L.; Williams, C.M.; Gerber, M.R.; Sege, R.; Stair, T.; Herbert, B., 2005: Intimate partner violence and patient screening across medical specialties. The aims of this study were to compare rates of intimate partner violence (IPV) across different medical specialties and health care sites in one metropolitan area, describe demographic characteristics of women with abusive partners, characterize...

de Ravel, T.J.L.; Van Driessche, J.; Fryns, J.P., 2004: Macrocephaly, mental retardation, dysmorphism, and spastic paraplegia. Fibrochondrogenesis is one of the rare lethal osteochondrodysplasias, which show abnormal maturation, and disturbed growth of cartilage and bones. These disorders are a heterogenous group of genetic disorders with a total incidence of 1-3 in 10,00...

Strauss, C., 2002: The facial nerve in medial acoustic neuromas. Object: Functional results after surgery for acoustic neuromas that have little or no growth within the internal auditory canal are controversial, because these medial tumors can grow to a considerable size within the cerebellopontine angle (CPA)...

Crawford R.D.; Cashman S.; Marone C.J.; Carpenter B.; Baldwin J., 2006: Frictional properties of sand collected from the 1906 rupture zone of the San Andreas Fault at Alder Creek, CA. Eos, Transactions, American Geophysical Union 87(Fall Meeting Suppl

Prassack, K.A., 2014: Landscape distribution and ecology of Plio-Pleistocene avifaunal communities from Lowermost Bed II, Olduvai Gorge, Tanzania. Plio-Pleistocene avifaunal communities are used to reconstruct Lowermost Bed II landscapes at the early hominin site of Olduvai Gorge, Tanzania. These deposits are laterally extensive, have strong chronostratigraphic control, and were excavated us...

Jaganathan, R., 1992: Chemical control of damping-off of acid lime. The efficacy of 7 fungicides (captan, copper oxychloride, mancozeb, zineb, PCNB [quintozene], benomyl and carbendazim) in controlling damping-off of acid lime caused by Rhizoctonia solani was investigated. Max. percentage germination and survival...

Zhong, Y-jue.; Zhang, C.; Wang, G-fa., 2011: Effects of 5-hydroxytryptamine and 5-hydroxytryptamine 2A/2C agonist on the genioglossus activity and sleep apnea in rats. 5-Hydroxytryptamine (5-HT) is a common neurotransmitter in the brain which plays an important role in the pathogenesis of sleep apnea. Dysfunction of 5-HT and 5-HT(2) receptors may lead to the collapse of the upper airway and the instability of re...

Frezil J.L.; Coulm J., 1977: Present strategy against sleeping sickness in the republic of congo. Annales de la Societe Belge de Medecine Tropicale 57(4/5): 315-322