Fused silica 24 ga

Manufactured by Merck Group

Sourced in United States

Fused Silica 24 Ga is a type of lab equipment made of high-purity fused silica. It is a rigid, non-porous material with excellent thermal and chemical resistance properties.

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Lab products found in correlation

Agilent 7890b 5977a, by Agilent Technologies (1 mentions) Pdms dvb, by Merck Group (1 mentions) Stableflex 24 ga, by Merck Group (1 mentions)

3 protocols using fused silica 24 ga

Volatile Compounds Analysis of Eggs

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The control and treated eggs were put in 20 mL headspace extraction bottles.
CAR/PDMS Fused Silica 24 Ga (Manual Holder, 3pk; Supelco, Bellefonte, PA, USA)
extracted for 2 h, desorbed in the GC-MS inlet for 5 min, and determined
volatile flavor compounds. GC-MS conditions: Agilent 7890B/5977A (Agilent, Santa
Clara, CA, USA) GC-MS, HP-5 (30 m ×0.25 mm×0.25 mm) column, inlet
temperature 230°C, split less injection. Heating program: the initial
temperature was 40°C, maintained for 6 min, increased to 135°C at
a heating rate of 3°C/min, and then increased to 230°C at a
heating rate of 6°C/min and held for 10 min. Mass spectrometry
conditions: EI ion source, ion source temperature 200°C, electron
capacity 70 ev, filament current 150 μA, scanning mass range
33–450 u.

Harlina P.W., Yuliana T., F.e.t.r.i.y.u.n.a., Shahzad R, & Ma M. (2023). Study on the Development and Functional Characteristics of Salted Egg with Liquid Smoke. Food Science of Animal Resources, 43(3), 471-490.

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Volatile Organic Compound Profiling in Fermentation

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Volatile organic compound (VOC) profiles were determined following procedures described by Zou et al. [11 (link)], with some modifications. Samples of the FCRB and TFRB were stored at 4 °C before analysis, and 1 µL 2-octanol internal standard and 2 g NaCl were added to each 8 mL sample in a 20 mL vial and tightly capped with a PTFE/silicone septum. Carboxen/polydimethylsiloxane (CAR/PDMS) SPME fibers (75 µm, Fused Silica 24 Ga, Manual Holder, 3 pk, Supelco, Bellefonte, PA, USA) were used for VOC extraction at 60 °C for 50 min. Compounds were desorbed for 5 min at 280 °C in splitless mode, using a 0.75 mm dedicated SPME liner.
Gas chromatography conditions, MS operating conditions, and qualitative and semi-quantitative analysis were all performed according to the method described by Zou et al. [11 (link)].

Zou J., Hu Y., Li K., Liu Y., Li M., Pan X, & Chang X. (2022). Chestnuts in Fermented Rice Beverages Increase Metabolite Diversity and Antioxidant Activity While Reducing Cellular Oxidative Damage. Foods, 12(1), 164.

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Solid-Phase Microextraction (SPME) Fiber Selection

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The SPME fiber assembly kit assortment, Stableflex 24Ga, manual holder, 4pk fibers and PDMS/DVB (divinylbenzene), fused silica 24 Ga, SPME holder and SPME manifold were supplied by Supelco. The fibers selected were PDMS/DVB and PDMS/DVD+OC (organic carbon) with film thickness diameter 65 µm, polyacrylate 85 µm, Carboxen™/PDMS 85 µm and DVB/CAR/PDMS 50/30 µm. Fibers were conditioned with the set up parameters and tested without further modification. To eliminate potential problems with carry over and baseline noise, blank injections were performed between runs.

Papageorgiou M., Lambropoulou D., Morrison C., Namieśnik J, & Płotka-Wasylka J. (2018). Direct solid phase microextraction combined with gas chromatography - Mass spectrometry for the determination of biogenic amines in wine. Talanta, 183.

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