Plant Analyses, Analysis of Dried Plant Material by X-Ray Emission Spectrograph

Brandt, C.; Lazar, V.

doi:10.1021/jf60086a006

Cited by 18 publications

(4 citation statements)

References 5 publications

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“…Strontium was analyzed by X-ray emission spectrography, the instrument used being a General Electric Model XRD-5 maintained in the Department of Soils and Plant Nutrition. The general procedure described by Brandt and Lazar (1958) for the analysis of zinc and molybdenum in dried plant material was used, the line/ scatter ratio of *an element being a measure of its concentration. However, in the case of strontium it is not possible to prepare a working curve from chemically analyzed samples due to the difficulties of chemical analysis (Bowen and Dymond, 1955).…”

Section: Eilgardíamentioning

confidence: 99%

The uptake of strontium and calcium from soils by grasses and legumes and the possible significance in relation to SR-90 fallout

Vose¹,

Koontz²

1960

Hilg

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In view of the nature of much of the evidence on which future world-wide radioactivity levels have been predicted, and also the possibility of increased bomb testing, reactor accidents, or even atomic warfare, it seemed desirable to determine if species differences existed in forage plants, such that some might take up less strontium from the soil than others.Sixteen species and strains of forage legumes and grasses were grown on three different soils, similar in texture and pH but varying in strontium and calcium content. The plant tops and the soils were analyzed for strontium and calcium. A method was developed, using X-ray emission spectrography, for the analysis of strontium.The results indicate three significant features: 1) Every legume species rakes up more strontium than any grass; 2) within either the grasses or the legumes the variation in strontium content between species and varieties is not marked; and 3) the amount of stronrium taken up is directly related to the calcium taken .up.A grass diet for dairy cows has an advantage over a legume diet in that both strontium and calcium levels are !ower, and a higher calcium supplement can be added to the grass diet to greatly decrease the Sr/Ca ratio before calcium toxicity results. It seems reasonable that the strontium (or Sr-90) content of milk can be reduced by a factor of about 8 when cows are fed grass supplemented with calcium.

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Section: Eilgardíamentioning

confidence: 99%

The uptake of strontium and calcium from soils by grasses and legumes and the possible significance in relation to SR-90 fallout

Vose¹,

Koontz²

1960

Hilg

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“…The determinations were made on about 0.5-gram subsamples evenly spread in the frames described. As previously reported, it was not necessary to pack weighed quantities of the samples into the frames (2). The feces samples were collected twice daily according to the experimental design and with the cooperation of the Holstein-F riesian steers that were grazing on experimental alfalfa-grass pastures.…”

Section: Methodsmentioning

confidence: 99%

“…The scintillation detector, with a thallium-activated sodium iodide crystal, was operated at 1050 volts. The modified sample holder and the Mylar-backed aluminum alloy frames have been described (2).…”

Section: Equipmentmentioning

confidence: 99%

Estimation of Fecal Output, X-Ray Spectrographic Determination of Chromic Oxide in Steer Feces

Lazar¹,

Monson²

1965

J. Agric. Food Chem.

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“…Calcium (3, 13, 14,46,47,56,68,160,161) Chlorine(46,113,160,161,216) Chromium (3, IS, 16, 22, 42, 57, 64, 68, 91, 100, 103,109,213) Cobalt(3,35,46,57,83,100,213) Copper (3, 15, 45, 57,68,83,91,95,119,150) …”

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confidence: 99%

X-Ray Absorption and Emission

Liebhafsky¹,

Winslow²,

Pfeiffer³

1960

Anal. Chem.

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1960. One may hope that the appearance of these books wdll help to stabilize, with consideration for the analytical chemist, the confused and proliferating nomenclature in the field under review. SCATTERING While x-ray methods were coming of age in analytical chemistry, it sufficed to know that atoms do scatter x-rays, and that the importance of this scattering increases relative to photoelectric absorption as the atomic number decreases.

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Plant Analyses, Analysis of Dried Plant Material by X-Ray Emission Spectrograph

Cited by 18 publications

References 5 publications

The uptake of strontium and calcium from soils by grasses and legumes and the possible significance in relation to SR-90 fallout

The uptake of strontium and calcium from soils by grasses and legumes and the possible significance in relation to SR-90 fallout

Estimation of Fecal Output, X-Ray Spectrographic Determination of Chromic Oxide in Steer Feces

X-Ray Absorption and Emission

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