Solid supports Gas Chrom

Solid support = gas-chrom Q, 80-100 mesh Inlet temperature = 200°C... 

Figure 23 Determination of sodium pantothenate and panthenol as trimethylsilyl derivatives. Detector FID column glass, 2440 X 4 mm stationary phase 5% SE-30 solid support Gas Chrom Q (100/120 mesh) temperatures injector 270°C, column 185°C, detector 270°C peak identification (1) trimethylsilyl derivative of panthenol (2) trimethylsilyl derivative of pantothenic acid (sodium pantothenate). (From Ref. 73.)...

Figure 28 Separation of the MTPA derivatives of d- and L-pantolactone. Detector FID column glass, 2000 X 3 mm stationary phase 2% OV-17 solid support Gas Chrom Q (80/100 mesh) temperatures injector 190°C, column 170°C, detector (not stated) peak identification (1) MTPA derivative of L-pantolactone (2) MTPA derivative of D-pantolac-tone. (From Ref. 79.)... 

All columns glass, 180cm x 4mm i.d., solid support Gas-Chrom Q, I00-I20mesh " May substitute OV-210 for QF-I Anomalous, multipeak response often encountered... 

Gas-liquid chromatography affords another technique by which the purity of the organotin hydrides may be ascertained. Tri-n-butyltin hydride, for example, may be chromatographed in a Pyrex column packed with Gas-Chrom Z solid support containing a 5% dispersion of silicone oil. 

The most commonly used supports are derived from diatomaceous earth and tefion. They are sold under many trade names depending on their pretreatment. The diatomaceous earth supports may be either Firebrick derived materials, such as Chromosorb P (a form of crushed commercial firebrick) and Gas Chrom R, or materials derived from filter aids, which Include Chromosorb W (diatomaceous earth heated with an alkaline flux), Anakrom ABS, and Gas Chrom Q. Some other solid supports are known by the trade names Celite 545, Phasep P, Embacel etc., (ail diatomaceous earth derived). Table 11.5 lists properties of some principal types of solid supports. 

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