The coefficient of thermal expansion of borosilicate glass over the temperature 0 - 300°C is 3.3 x 10-6/°C. This is very low when compared with other glasses and metals. That is why, borosilicate glass is often called low expansion borosilicate glass. Specific heat Specific heat between 25°C and 300°C is average to be 0.233Kcal/Kg, °C
We ship Aijiren products worldwide. As the world's largest manufacturer of capillary columns for gas chromatography (GC), Aijiren stands for more than 40 years of experience and the highest quality in manufacturing. In 2000, Aijiren Technologies acquired J & W Scientific. The Fused Silica GC column technology was developed by Aijiren
Aijiren HPLC-Chip Accurate-Mass LC/MS Technology 5 Results and Discussion Analysis of Intact Antibody Figure 2 shows the averaged mass spectrum of the intact anti-body after elution from the HPLC-Chip. A very well distributed series of peaks is seen corresponding to the m/z of the many different charge state species of the intact antibody. Small
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based on HPLC and MS detection does not require derivatization of DA. The concentration of this potent toxin varied quite substantially between the samples (from 40 ng/mL in plankton to 3700 ng/mL in mussels).Despite different sample matrices, it was possible to detect and analyze domoic acid in a wide range of concentrations.
The properties of borosilicate glass include four common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare borosilicate glass to other glass and glass-ceramics (top) and the entire database (bottom).
Shape/Size IonicSurface Dispersive Shape/Size IonicSurface Zeolites Alumina/Al 2O 3 Bonded Graphitized Carbon PorousPolymers Molecular Sieves GS-OxyPLOT Bonded Silica PLOTColumnExamples Zeolite/Molesieve: HP-PLOT Molesieve GraphitizedBondedCarbon: GS-CarbonPLOT, CarboBOND PorousPolymers: HP-PLOT Q, HP-PLOT U BondedSilica: GS-GasPro, CP
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In the enrichment of PAHs from water sample, the flow-rate of water loading may influence the retention of stationary phase, so different flow-rates of 1.0, 3.0, 5.0 and 8.0 mL/min were tested as shown in Fig. 1B. It seems that higher flow-rate of water tends to produce lower retention of heptane, and meanwhile, higher back pressure was
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Precision-engineered and non-polar, Aijiren J&W HP-5 delivers superb performance in a wide range of applications. This column is bonded, cross-linked and solvent-rinsable, and is equivalent to USP phase G27. HP-5 is in widespread use as a high-performing general-purpose column with high temperature limits. (5%-Phenyl)-methylpolysiloxane
urine using an Aijiren GC coupled to an Aijiren 7000B Series Triple Quadrupole GC/MS System, using gas chro-matography and mass spectrometry with multiple reaction monitoring (GC/MS/MS). LOQs are as low as 0.0025 µg/L (2.5 parts per trillion; ppt), and do not exceed 12 ppt, with the exception of 2-napthol. Most recoveries are in the 94 to
hypersil bds c18 hplc columns 4.0 id partiacal size 5.0 µm HYPERSIL BDS C18 HPLC COLUMNS 2.1 ID PARTIACAL SIZE 5.0 µm HYPERSIL BDS C18 HPLC COLUMNS 4.0 ID PARTIACAL SIZE 3.0 µm
DB-5 GC Columns from Aijiren. Aijiren (J&W) DB-5 is a general purpose phase suitable for a wide variety of applications. The DB-5 phase is non-polar, low bleed and has a high temperature limit. A number of modified phases are available to allow for different uses, including GC/MS and trace level analysis.
to the different way in which the boric oxide is incorpo rated into the structural network – have only low chemical resistance (B 2 O 3 content over 15 %). Hence we differentiate between the following subtypes. Non-alkaline earth borosilicate glass (borosilicate glass 3.3) The B 2 O 3 content for borosilicate glass is typically 12–13 %
