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RSA Vials, Inserts & Caps

16 How does RSA glass autosampler vials compare against siliconized or silanized vials for Pharma applications?

RSA™ is different from siliconized or silanized vials in some ways and similar in others. It depends on why you are using siliconized vials if you should use RSA or RSA-Pro™ (Deactivated vials). If…

17 In order to prevent gas venting from a closed autosampler vial, should I use snap, crimp, or screw cap

The crimp cap provides the best quality seal for the longest duration but only if the crimping tool that is used to create the seal is calibrated properly. To maintain adequate calibration, you should…

18 Is the RSA-Pro glass surface treatment different than gas deactivation of a regular vial?

Yes, it is different from ordinary gas deactivation/silanization. When manufacturers gas "silanize" on ordinary glass vials they apply silanes that are hydrophobic. The RSA-Pro™ treatment bonds mostly…

19 Is there a difference in activity between clear and amber RSA™ glass vials?

Except for the obvious and chromatographically speaking, there is no difference between amber and clear RSA glass. Regarding adsorption of basic analytes or effect of pH on sample diluent as observed…

20 What can damage the special surface treatment of RSA™ glass vials for opioids?

Generally speaking, in order to protect the special surface treatment done with RSA™ glass for cannabis and other opioids, you should avoid very high ionic strength low pH solutions. Try staying within…

21 What is the difference between 45 Shore A and 55 Shore A caps?

"Shore" is a measure of the hardness of a material, named after Albert F. Shore. The letter designates the "scale," which specifies what type of substance is described. In this case, A refers to flexible…

22 What precautions are used in the assembly of your vials and caps to prevent contamination?

All our vials and caps are manufactured in carefully controlled conditions to prevent introduction of contaminants to the product. Assembly is performed using powder-free gloves and hair nets in a cleanroom…

23 What pressure is required for a needle to pierce the septa in your autosampler caps?

The 9mm screw cap requires 3.1 pounds of pressure to puncture. The PTFE/Silicone septa requires 3.7 pounds to puncture. The MSQ™ PTFE/Silicone septa requires 3.8 pounds to puncture Copyright MicroSolv…

24 Which vial should I use for a low-volume sample study using proteins?

Some compounds adsorb to borosilicate glass due to hydroxyl groups on the glass surface and others adsorb due to hydrophobic interaction with the glass itself. Deactivated (silanized) RSA (Reduced Surface…

25 Why do the same caps sometimes have different size bags?

There may be times that the same item will be packaged in different looking bags due to a packaging shortage on the bags from the factory. We can guarantee the material is the same but the packaging may…

26 Why does MicroSolv have 4 "tiers" or brands of autosampler vials?

A simple and quick answer is to meet the needs of all laboratories. In 1997, the MicroSolv Brand™ vials, made with N51A TYPE-1 borosilicate glass were the standard of the autosampler vial industry and…

27 Why don't you use a cleaning process for RSA vials?

When autosampler vials are manufactured from high purity glass tubing, to eliminate the vertical and horizontal strain on the vials, they must be annealed using heat that is between 1,200 - 1,400°F.…

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