Articles by Keyword: Atomic Absorption Spectrometry

Search results for Atomic Absorption Spectrometry

We found 11 results for you
  1. Heavy metal concentrations in, and human health risk assessment of, three commercially valuable fish species in the lower Niger River, Nigeria

    Heavy metal concentrations in, and human health risk assessment of, three commercially valuable fish species in the lower Niger River, Nigeria

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The concentrations of Fe, Mn, Ni, Pb and V in water, sediment and the gill, liver and muscle tissues of Synodontis resupinatus, Heterotis niloticus and Clarias gariepinus, all commercially important fish species of the lower Niger River, were investigated in...
  2. Bepaling van donkerrespirasie by mielies (<em>Zea mays L.</em>)

    Bepaling van donkerrespirasie by mielies (<em>Zea mays L.</em>)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Twee mieliecultivars wat in potte onder glashuistoestande met optimale watervoorsiening gekweek is, is gedurende die agtblaarstadium en stuifmeelstort tot baardverskyning aan stremming onderwerp deur watertoediening te weerhou. Die CO2-uitvloeitempo is op sekere tye gedurende die nagperiode gemonitor. Hierdie waardes het...
  3. Evidence that alachlor selectivity in sunflower is based on depth-protection

    Evidence that alachlor selectivity in sunflower is based on depth-protection

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The relative importance of the underground shoot parts (hypocotyl) and roots of sunflower (Helianthus annuus L.) seedlings on the absorption of alachlor [a-chloro-2′,6′-diethyl- N-(methoxymethyl) acetanilide] was studied in a glasshouse experiment. A layer of activated charcoal divided the soil in...
  4. The direct determination of phosphorus in citric acid soil extracts by colorimetry and direct-current plasma emission spectroscopy

    The direct determination of phosphorus in citric acid soil extracts by colorimetry and direct-current plasma emission spectroscopy

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of citrate interference on the direct colorimetric determination of P in 1% citric acid soil extracts of a wide range of soils was investigated and compared to that of removing the citric acid by dry ashing. It was...
  5. PRELIMINARY RESULTS ON THE UPTAKE AND RELEASE OF 32<sub>P</sub> BY POTAMOGETON PECTINATUS

    PRELIMINARY RESULTS ON THE UPTAKE AND RELEASE OF 32<sub>P</sub> BY POTAMOGETON PECTINATUS

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The absorption and release of 32PO4, by Potamogeton pectinatus L during winter was investigated using a partitioned container in which the roots were separated from the stems and leaves. 32PO4 is absorbed by the roots as well as the stems...
  6. On coreflective hulls in [0, 1]-<bold>TOP</bold> and <em>s</em>[0, 1]-<bold>TOP</bold>

    On coreflective hulls in [0, 1]-<bold>TOP</bold> and <em>s</em>[0, 1]-<bold>TOP</bold>

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    In this paper, we find the coreflective hull of the category of indiscrete [0, 1]-topological spaces in the category [0, 1]-TOP of [0, 1]-topological spaces. We also show that the coreflective hull of a single-point s[0, 1]-topological space in the...
  7. Phytoplankton absorption and pigment adaptation of a red tide in the Benguela ecosystem

    Phytoplankton absorption and pigment adaptation of a red tide in the Benguela ecosystem

    Item type: Journal Article • Journal: African Journal of Marine Science
    Phytoplankton absorption and pigment characteristics of a red tide were investigated in coastal waters of the southern Benguela. Diagnostic indices indicated that dinoflagellates were the dominant phytoplankton group, with diatoms and small flagellates being of secondary importance. Very high biomass...
  8. Variation in foliar water content and hyperspectral reflectance of <em>Pinus patula</em> trees infested by <em>Sirex noctilio</em>

    Variation in foliar water content and hyperspectral reflectance of <em>Pinus patula</em> trees infested by <em>Sirex noctilio</em>

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    The remote detection and quantification of symptoms associated with declining forest health is critical for the introduction of proper pest monitoring and control measures. Sirex noctilio, the Eurasian wood wasp, is one of the major pests responsible for declining forest...
  9. Assessing the ability of fodder beet (<em>Beta vulgaris</em> L. ‘Brigadier’) to absorb sodium from a soil irrigated with sodium-enriched water

    Assessing the ability of fodder beet (<em>Beta vulgaris</em> L. ‘Brigadier’) to absorb sodium from a soil irrigated with sodium-enriched water

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A pot experiment was carried out to determine the sodium (Na) absorption ability of halophytic fodder beet (Beta vulgaris L. ‘Brigadier’) irrigated with water enriched to Na levels found in winery wastewater. Treatments comprised (1) soil without plants irrigated with...
  10. People performance enablers in relation to employees’ psychological attachment to the organisation

    People performance enablers in relation to employees’ psychological attachment to the organisation

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This study investigated the relationship between a set of people performance enablers and psychological attachment behavioural states in a variety of South African work settings. The sample (N = 582) comprised mostly males (69%) and black Africans from organisations in the manufacturing...