Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. G. Crock"'
Publikováno v:
The Auk. 118:1057-1062
Birds are unique among vertebrates in that they protect their eggs with rigid, calcium-rich shells. Thus, for a short period of time during the annual reproductive cycle, birds experience extraordinarily high demands for calcium. Two strategies appea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef2b8bee19f273a076b41e6ae386161a
https://doi.org/10.1093/auk/118.4.1057
https://doi.org/10.1093/auk/118.4.1057
Publikováno v:
Open-File Report.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15cd1e5cef8562936e5555db65fc3896
https://doi.org/10.3133/ofr20111146
https://doi.org/10.3133/ofr20111146
Publikováno v:
Impacts of Global Climate Change.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef0a71c31414d22bfb95344620de81bf
https://doi.org/10.1061/40792(173)252
https://doi.org/10.1061/40792(173)252
Publikováno v:
Open-File Report.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac43563f7a5cb7174185cbff3d71a28b
https://doi.org/10.3133/ofr0357
https://doi.org/10.3133/ofr0357
Publikováno v:
Nature. 406(6792)
Cadmium is known to be both extremely toxic and ubiquitous in natural environments. It occurs in almost all soils, surface waters and plants, and it is readily mobilized by human activities such as mining. As a result, cadmium has been named as a pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36bcd97de8167c810eb7b631d1e26492
https://pubmed.ncbi.nlm.nih.gov/10910356
https://pubmed.ncbi.nlm.nih.gov/10910356
Autor:
P. H. Briggs, V. P. Afonin, S. J. Parry, J. G. Crock, P. J. Potts, Chr. Koeberl, P. F. McDermott, K. E. Jarvis
Publikováno v:
Methods and Instrumentations: Results and Recent Developments ISBN: 9783642785283
As in other branches of science, analytical techniques for the chemical characterisation of geological materials have undergone a revolution over the past 30 years. The introduction of a succession of new and increasingly powerful techniques over thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2236dd661adbdcd9e4065b4e2226fafe
https://doi.org/10.1007/978-3-642-78526-9_7
https://doi.org/10.1007/978-3-642-78526-9_7
Autor:
J. G. Crock, K. R. Kennedy
Publikováno v:
Analytical Letters. 20:899-908
To determine mercury in geological materials, samples are digested with nitric acid and sodium dichromate in a closed teflon vessel. After bringing to a constant weight, the digest is mixed with air and a sodium chloride-hydroxylamine hydrochloride-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78045160c1df0249d26c0d59596e0382
https://doi.org/10.1080/00032718708062939
https://doi.org/10.1080/00032718708062939
Autor:
J. G. Crock
Publikováno v:
Analytical Letters. 19:1367-1385
An improved, automated methods for the determination of bismuth in geological materials at the sub-microgram per gram level is described. After a closed-vessel digestion using nitric, hydrochloric, and hydrofluoric acids and evaporation twice with pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2afaedceeb565f602c6d339c40666922
https://doi.org/10.1080/00032718608069113
https://doi.org/10.1080/00032718608069113
Autor:
J. G. Crock, F. E. Lichte
Publikováno v:
Analytical Chemistry. 54:1329-1332
Inductively coupled argon plasma/optical emission spectrometry (ICAP/OES) is useful as a simultaneous, multielement analytical technique for the determination of trace elements in geological materials. A method for the determination of trace-level ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead1f3fc7eb5f99db78b60807555f9b3
https://doi.org/10.1021/ac00245a018
https://doi.org/10.1021/ac00245a018
Publikováno v:
Open-File Report.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ca9760c7853ee311819bd945e78e0c
https://doi.org/10.3133/ofr83405
https://doi.org/10.3133/ofr83405