Saudi Arabia round bottom headspace gas chromatography online

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aromatic herb grown in Saudi Arabia, was screened for in vitro antibacterial activity and chemical composition. Hydro-distilled essential oil (yield 0.71 %) was analysed for its chemical composition by gas chromatography-flame ionization detector (GC-FID) and

A gas chromatographic method, along with a headspace solid-phase microextraction (HS-SPME), was developed for the determination of acrylamide formed in Maillard reaction model systems.

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The gas chromatographer was equipped with a flame ionization detector ( FID ), split/splitless injector (260 ° C) and an HP- 5ms 5% capillary column with a film of 30 m × 0.25 mm × 0.25 μm

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Uses standard, round-bottom 10-mL and 20-mL headspace vials without adapters The 12-position equilibration oven loads from the bottom to minimize heat loss and improve repeatability Maximum equilibration temperature of 300 °C permits analysis of high-boiling compounds

minor modifications. Samples of dates (2.5 g) were first extracted by refluxing twice with 50 mL ethanol (85%). In this step the extract was placed in a round-bottom flask (250 mL) connected to a glass condenser and magnetically stirred on a water bath (80 C) for

S1 Supplementary Material Aqueous Phase Semihydrogenation of Alkynes over Ni-Fe Bimetallic catalysts Rohit K. Raia,c, Mahendra K. Awasthia, Vipin K. Singhb, Sudipta Roy Barmanb, Silke Behrensd, and Sanjay K. Singh*a aCatalysis Group, Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore

Iconic round bottom flask. Although described as boiling flasks, these iconic round bottom flasks can be used for a multitude of laboratory applications. Complies with DIN ISO 1773. Manufactured from Pyrex ® borosilicate glass which offers excellent resistance to chemical corrosion and thermal shock. Skip to the end of the images gallery.

Cole-Parmer KX headspace vials are available with rounded or flat bottom profiles for accurate instrument compatibility. Flat bottom vials have a greater stability; round bottom vials are best for autosamplers that physically move the vials and can reduce positioning errors.

with gas chromatography-mass spectrometry (GC–MS). Other authors described screening procedures for herbal adulterants using GC–MS and high-pressure liquid chromatography with diode array detection (HPLC–DAD) [11,23]. However, sev-eral drugs exist

2003), gas chromatography (El Walily, 1997; Martens et al., 1994) and Spectrofluorometry (Al-Ghannam et al., 2008). Electrochemical methods had been also described for determination of

We offer a comprehensive range of these popular round bottom flasks, with volumes from 500ml to 10000ml. With highest quality Quickfit ® ground glass socket. Manufactured from borosilicate glass for corrosion-free performance and resistance to thermal shock.

PAC is the leading manufacturer of lab & process analyzers for gas chromatography, elemental analysis & physical properties. The PAC portfolio includes: AC, Advanced Sensors, Alcor, Antek, Cambridge Viscosity, Herzog, ISL, PetroSpec & Phase Technology.