With the NovaSeptum® sampling system, contamination is no longer a threat. Ideal for aseptic and sterile processes, the closed design ensures your sample will be isolated from point of sample to analysis. NovaSeptum® also allows for savings of precious materials with its compact, no dead leg, design.

Silicone rubber septa. High quality, silicone rubber laminated to PTFE. Use when excellent resealing qualities are a must. Septum resists coring and is recommended when multiple injections are required. Preferred septa for use in liquid chromatography applications.

Septa can be made from a range of materials including PTFE, silicone, red rubber, luoroelastomers, and butyl to name. few. The materials are layered together in one of three options: Choose a material that is as inert as possible to your sample analyte and makeup solvents.

Jul 1, 2022 · The results of thermogravimetric analysis (TGA) showed that the residual weight of the matrix was still more than 50% at 700 °C when MRP content was 3∼10 phr. Mg(OH) 2 nanoparticles modified by vinyl triethoxysilane (VTES) had good compatibility with the silicone rubber matrix [56]. As a functional additive, it also had significant effect on

PTFE/Synthetic Red Rubber Septa: (PTFE/RR) -30 +110 -22 +230 PTFE/ High Perfomance Red Rubber Septa -40 +110 -40 +230 PTFE/Silicone Septa: (T/S) -60 +200 -76 +392 PTFE/Silicone/PTFE Septa: (T/S/T) * -60 +200 -76 +392 PTFE Septa * -200 +250 -328 +482 Polyethylene (PE) * -50 +80 -58 +176 Polypropylene (PP) * 0 +121 32 +250

Description. Pricing. Details. black polypropylene, septum (TEF/red rubber), septum thickness 1.3 mm, 8-425 thread. Expand. Hide. 854987. black polypropylene hole cap, thread for 13-425, PTFE/red rubber septum, for use with 4 mL vials with 13-425 thread, pkg of 100 ea. Expand.

The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial.

Aijiren's 2 mL screw top vials are constructed from Type 1 borosilicate glass, with low metal content, to protect your sample from destabilizing or leaching. Our 2 mL glass vials are available in both amber and clear versions. The associated 9 mm vial screw cap comes with your choice of septa constructed from either PTFE/silicone, PTFE/silicone

Aseptic sampling is the process of aseptically withdrawing materials used in biopharmaceutical processes for analysis so as not contaminate or alter the sample or the source of the sample. Aseptic samples are drawn throughout the entire biopharmaceutical process (cell culture/fermentation, buffer & media prep, purification, final fill and

May 24, 2018 · Purpose. Polysorbates are commonly added to protein formulations and serve an important function as stabilizers. This paper reviews recent literature detailing some of the issues seen with the use of polysorbate 80 and polysorbate 20 in protein formulations. Based on this knowledge, a development strategy is proposed that leads to a control

rubber, Viton, polypropylene and polyethylene. PTFE is often laminated onto the sample facing side of a resealable septum to improve solvent exposure characteristics. Laminated septa will generally exhibit greater chemical resistance until the PTFE layer is punctured. Other factors that can affect chemical compatibility are temperature, pressure,

Feb 1, 2021 · Figure 1 shows the preparation process for the foam/solid alternating multilayered silicone rubber foam materials. First, the samples in Table 1 are made into sheets with a thickness of 0.2 mm

May 26, 2021 · In 2006, FDA restrictions were lifted with improved manufacturing practices and the lack of credible causal relationship between breast implants and diseases related to connective tissues. 5. Silicone gel has been used to recover soft tissue mass in the breast, scrotum, chin, nose, cheek, calf, and buttocks via reconstructive plastic surgery.

silicone is added to the stopper washer during the wash cycle (Reference 1). Caution must be taken so that the right amount of silicone oil is applied. Over siliconization may result in adverse reaction with the product producing a hazy appearance. Under siliconization may result in stoppers clumping together (Figure 3). Figure 3.

of rubber offer better resistance to acetone, certain other ketones, and some esters. The fluorosilicone polymer can be blended with other silicone polymers to obtain resistance intermediate between the two types. 2. The higher the aromatic or phenyl content of oils and fuels, the greater is their effect on most types of silicone rubber