Czechoslovakian biological certified reference materials and their use in the analytical quality assurance system in a trace element laboratory

Miholová, D.; Mäder, P.; Száková, Jiřina; Slámová, Alžběta; Svatoš, Z.

doi:10.1007/bf00322606

Cited by 63 publications

(34 citation statements)

References 2 publications

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“…For determination of Cd, plant samples were decomposed using the dry ashing procedure (Miholová et al 1993). The concentrations of Cd were determined by ICP-OES with axial plasma configuration (VarianVistaPro, Varian, Mulgrave, Australia).…”

Section: Methodsmentioning

confidence: 99%

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

Zemanová¹,

Pavlı́k²,

Pavlı́ková³

et al. 2013

Plant Soil Environ.

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Changes of free amino acid (AA) contents (glutamic acid, glutamine, aspartic acid, asparagines, proline, hydroxyproline) in Noccaea caerulescens and Arabidopsis halleri under cadmium soil contamination (Cd1 = 30, Cd2 = 60, Cd3 = 90 mg/kg soil) are reported. Results of the pot experiment confirmed different effect of Cd on N. caerulescens in contrast to A. halleri and the higher stress adaptation of A. halleri. Total free AA contents in both plant species were not significantly modified by Cd contamination. The glutamic acid and glutamate contents in plant biomass were decreased under Cd2 and Cd3 stress. The declines of contents of both AA can be caused by intensive syntheses of plant defense elicitors, but declines in A. halleri were significantly lower in contrast to N. caerulescens. The content of aspartic acid was increased in N. caerulescens under Cd stress, but in A. halleri its changes were not observed. The different pathways of nitrogen utilization of tested plants were confirmed: the major AA forms used for nitrogen transport are glutamate for N. caerulescens and asparagine for A. halleri. The increase of proline content was determined only in N. caerulescens growing under Cd stress in the beginning of growing period.

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Section: Methodsmentioning

confidence: 99%

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

Zemanová¹,

Pavlı́k²,

Pavlı́ková³

et al. 2013

Plant Soil Environ.

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“…Plant material was decomposed by modified dry ashing procedure as follows: an aliquot (~1 g) of the dried and powdered aboveground biomass was weighed to 1 mg into a borosilicate glass test-tube and decomposed in a mixture of oxidizing gases (O 2 + O 3 + NO x ) at 400°C for 10 h in Dry Mode Mineralizer Apion (Tessek, Czech Republic). The ash was dissolved in 20 ml of 1.5% HNO 3 (electronic grade purity, Analytika Ltd., Czech Republic) and kept in glass tubes until the analysis (Miholová et al 1993).…”

Section: Methodsmentioning

confidence: 99%

The influence of organic fertilizers application on phosphorus and potassium bioavailabilit

Hanč¹,

Tlustoš²,

Száková³

et al. 2008

PLANT SOIL ENVIRON

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A prerequisite to use organic fertilizers in a sustainable way is to quantify the amount of phosphorus and potassium available for plants that could be taken up by a crop. The objective of this study was to evaluate direct and subsequent influence of organic fertilizers addition (poultry manure and two types of composts) on the changes of bioavailability of phosphorus and potassium in soil and their accumulation in the aboveground oat biomass (Avena sativa L.) during three years. The available phosphorus and potassium contents in soil had a degressive trend during the years of experiment. The lowest contents of these elements in soil were found in all treatments in the last year of the experiment. The plants took up the least P and K after application of compost derived from predominant sewage sludge portion. A stronger correlation (R = 0.88; P < 0.05) was found between available content of K in soil treated with organic fertilizers and K content in the aboveground biomass of oat than in the case of P (R = 0.45; P < 0.05).

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“…The samples were taken at 0, 1, 2, 4 and 8 months and stored in the freezer (-26°C) for analyses. pH (1:20 w/v of 0.01 mol/l CaCl 2 ) - Novozamsky et al 1993, carbon content (Sims and Haby 1971), total nitrogen (Bremner 1960), dissolved organic carbon -DOC (1:10 w/v of 0.01 mol/l CaCl 2 ) - Novozamsky et al 1993, total Cd content (Miholová et al 1993) and available content of Cd (1:10 w/v of 0.01 mol/l CaCl 2 ) -Novozamsky et al 1993 -were determined in each collection. Sequential analyses of Cd (Ure et al 1993) were determined at 0, 4 and 8 months.…”

Section: Methodsmentioning

confidence: 99%

The Cd mobility in incubated sewage sludge after ameliorative materials additions

Hanč¹,

Tlustoš²,

Száková³

et al. 2006

PLANT SOIL ENVIRON

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Cadmium mobility in sewage sludge amended by four types of ameliorative materials (lime, limestone, bentonite and zeolite) incubated under aerobic and anaerobic conditions for eight months was studied in the experiment. The most statistically significant decrease of available Cd extracted by 0.01 mol/l CaCl 2 was recorded in sludge between second and fourth months of incubation. As most effective stabilizers were found limestone and bentonite added into the sludge incubated under aerobic and anaerobic conditions respectively. The presence of air reduced Cd mobility in individual sludges more than lack of air. Cadmium was separated by sequential extraction into five fractions as water soluble, exchangeable, bound with Fe and Mn oxides, organically bound, and residual fraction. Sequential analysis showed decrease of Cd in exchangeable and oxide fractions in sludge treated by lime and limestone at the end of aerobic incubation. Cadmium was found in water soluble and exchangeable fractions in small portion, even so its content in these fractions was higher than determined in slighter 0.01 mol/l CaCl 2 solution.

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Czechoslovakian biological certified reference materials and their use in the analytical quality assurance system in a trace element laboratory

Cited by 63 publications

References 2 publications

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

The changes of contents of selected free amino acids associated with cadmium stress in Noccaea caerulescens and Arabidopsis halleri

The influence of organic fertilizers application on phosphorus and potassium bioavailabilit

The Cd mobility in incubated sewage sludge after ameliorative materials additions

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