Sentence examples for preparations were checked from inspiring English sources

The preparations were checked according to their activity and stability.

dsRNA preparations were checked for integrity on an agarose gels stained with ethidium bromide.

Final preparations were checked by silver staining of SDS polyacrylamide gels and immunoblot with anti-SVOP or anti-FLAG antibodies.

The cell content and the purity of the preparations were checked by visual inspection using light microscopy.

The purity and integrity of the RNA preparations were checked spectroscopically and by agarose gel electrophoresis before carrying out the analytical procedures.

The DNA contamination in RNA preparations were checked in PCR assay with human glyceraldehyde-3-phosphate dehydrogenase (GAPDH 1 and GAPDH 2) primers and RNA as template.

The purity of the preparations was checked by absorption spectra and pigment analysis via HPLC [ 22, 23].

The competence of the bacterial preparations was checked by performing a transformation and counting the colonies obtained with a known amount of pUC18 DNA.

The purity of the preparations was checked by SDS-PAGE analysis using a ready-made gel with 12% Tris-HCl (Bio-Rad, Perth, UK) and Coomassie staining, according to the manufacturer's instructions.

For 2D-DIGE, the purity of mitochondrial preparations was checked by western blot analysis with anti-actin (Chemicon, 1 1000), anti-alkaline phosphatase (Molecular Probe 1 1000), anti-Dol-P-Man synthase (Molecular Probes, 1 1000) antibodies to control for contamination of cytoplasm, vacuolar membrane, and ER membrane respectively.

The absence of contaminating genomic DNA in the cDNA preparations was checked by common PCR reaction using SUS10/SUS11 primer pair that spans introns 5 to 9 of the CcSUS1 gene (AJ880768), which encodes isoform 1 of the sucrose synthase from C. canephora [ 99].