Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1936/01/10 (A13,N1)-1936/12/24 (A13,N39).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1924/01/03 (A1,N1).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1939/01/12 (A16,N1).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1932/01/07 (A9,N1)-1932/12/22 (A9,N39).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1930/01/02 (A1930,N1)-1930/12/25 (A1930,N40).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1929/01/10 (A1929,A6,N1)-1929/12/26 (A1929,A6,N40).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1925 (A1925).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1926 (A1926).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1927/01/06 (A1927,A4,N1)-1927/12/22 (A1927,A4,N38).

Dalloz. Recueil hebdomadaire de jurisprudence en matière civile, commerciale, administrative et de droit public

1931/01/08 (A1931,N1)-1931/12/24 (A1931,N38).

An expeditious and consistent procedure for tetrahydrofuran (THF) drying and deoxygenation by the still apparatus

Despite the availability of alternative methods for drying tetrahydrofuran (THF), the use of the still apparatus, wherein a THF solution containing Na-bezophenone ketyl is heated to reflux, remains widespread. We herein propose a set of procedures to solve the problems usually faced in applying this drying technique. Moreover, a discussion is made on the chemical knowledge underlying such procedures. Safety and economy issues concerned with the operation of the THF still apparatus are also discussed.

Photometric procedure for quantitative analysis of Aflatoxin B1 in peanuts by thin-layer chromatography using charge coupled device detector

A photometric procedure was developed for determination of aflatoxin B1 in peanuts by TLC-CCD technique. The quantification and detection limit were 1.2 μg kg-1 and 0.4 ng per spot, respectively, with mean recovery of 98%. The CCD camera is sufficiently sensitive to detect small changes in spots fluorescence intensity and the results for performance confirmed the efficiency of the method. Another important property of CCD detector is its linearity for a wide range of luminous stimulus determined by analysis of five-point calibration curves using the intensity of AFB1 fluorescence versus AFB1 concentration (0.8 to 4.8 ng per spot). The method was applied to the analysis of thirty nine peanut samples and aflatoxin B1 levels ranged from 16 to 115 μg kg-1. The TLC-CCD and the photometric procedure developed in this study demonstrated to be a simple and efficient tool for quantitative analyses of AFB1 in peanut samples.

MSPD procedure combined with GC-MS for the determination of procymidone, bifenthrin, malathion and pirimicarb in honey

A method based on matrix solid-phase dispersion and gas chromatography-mass spectrometry to determine procymidone, malathion, bifenthrin and pirimicarb in honey is described. The best results were obtained using 1.0 g of honey, 1.0 g of silica-gel as dispersant sorbent and acetonitrile as eluting solvent. The method was validated by fortified honey samples at three concentration levels (0.2, 0.5 to 1.0 mg kg-1). Average recoveries (n=7) ranged from 54 to 84%, with relative standard deviations between 3.7 and 8.5%. Detection and quantification limits attained by the developed method ranged from 0.02 to 0.08 mg kg-1 and 0.07 to 0.25 mg kg-1 for the honey, respectively.

Optimization of a HPLC procedure for simultaneous determination of cisplatin and the complex cis,cis,trans-diamminedichlorodihydroxoplatinum(IV) in aqueous solutions

A RP-HPLC procedure for the simultaneous determination of cisplatin and the complex cis,cis,trans-diamminedichlorodihydroxo-platinum(IV), was development. The developed procedure was validated in terms of linearity, accuracy, precision, limits of detection (LOD), limits of quantification (LOQ) and specificity. The limits of detection (LOD) were 0.47 x 10-4 and 0.53 x 10-4 mol L-1 and the limits of quantification (LOQ) were 1.57 x 10-4 and 1.75 x 10-4 mol L-1, for cisplatin and cis,cis,trans-diamminedichlorodihydroxopla-tinum(IV), respectively. The average recoveries of cisplatin and cis,cis,trans-diamminedichlorodihydroxoplatinum(IV) was 100.6% ± 1.4 and 101.2% ± 1.1, respectively. Intermediate (inter-day) precision, repeatability and specificity of the procedure for hydrolysis products of cisplatin were studied. The results of the study showed that the proposed RP-HPLC procedure is simple, rapid, precise, accurate and specific.