Zoekresultaten - 129 results
Uncertainty of measurement for competitive and indirect ELISAs.
transformed into confidence intervals around the corresponding observed values and further transformed into probabilities of being above/below a cut-off. Logistic regression models were subsequently used to ...
Calculation of the decision limit (CCalpha) and the detection capability (CCbeta) for banned substances: the imperfect marriage between the quantitative and the qualitative criteria.
corticosteroids with LC- MS / MS have been validated by fortifying blank samples below and above the MRPL. CC alpha and CC beta were calculated using the ISO 11843 approach. In addition, the frequency of methodical ...
Validation of a method for the detection and confirmation of nitroimidazoles and the corresponding hydroxy metabolites in pig plasma by high performance liquid chromatography-tandem mass spectrometry.
limit (CC alpha) are below CC beta. Health Topics: Food consumption and food safety Category: A1 FOS Classification: 3.03 Health sciences ...
Assessment of quality performance parameters for straight line calibration curves related to the spread of the abscissa values around their mean
of the abscissa values around their mean, is below a critical value as described in literature. It is mathematically demonstrated that with respect to this critical limit value for g, the proposed ...
Biological control of the size and reactivity of catalytic Pd(0) produced by Shewanella oneidensis.
the ratio of Pd:cell dry weight (CDW) was below 5:2 at a concentration of 50 mg l(-1) Pd(II), most of the cells remained viable. These viable cells precipitated Pd(0) crystals over a relatively larger ...
Permeability of 13 different gloves to 13 cytotoxic agents under controlled dynamic conditions.
stretching, and tension. RESULTS: Linearity by LC / MS / MS and HPLC- UV was confirmed at concentrations up to 1000 ng/mL for all drugs. Most glove materials were permeable at rates below ASTM recommendations ...
Street youths are the only high-risk group for HIV in a low-prevalence South American country.
below 0.3% in all other groups. All HIV cases were attributed to sexual transmission. CONCLUSION: In a low-prevalence setting where intravenous drug use is uncommon, street youths are a threat for the ...
Arcobacter cibarius sp. nov., isolated from broiler carcasses.
hybridization with reference strains of the current four Arcobacter species revealed binding levels below 47 %. The G+C contents ranged between 26.8 and 27.3 mol%. Pairwise comparison of 16S rRNA gene sequences ...
Evaluation of tests for antibodies against bovine herpesvirus 1 performed in national reference laboratories in Europe.
The results show that the quality of most laboratories appeared to be adequate, but that one laboratory performed considerably below an acceptable level of quality. Four samples from the panel have been ...
Interpretation of CALUX results in view of the EU maximal TEQ level in milk.
Screening methodologies are usually used to exempt those samples that are below the maximum permitted limit and that can, therefore, be released to the market. In addition, one needs to select those samples ...