Frequently Asked Questions

E. Vials

What is the use of Scintillation Vials?


The main purpose is for an analytical technique, liquid scintillation counting, which detects the activity of a radioactive material in a sample. Before use in a liquid scintillation counter instrument, first, the sample is disolved or mixed into a mixture of a suitable solvent, a surfactant, and a scintillator.




What is the difference between Soda Lime and Borosilicate Glass?


Vials can be made with two types of materials, soda lime or borosilicate glass. Soda lime glass is the most commonly used glass in the world. It is composed of silicon dioxide (SiO2), sodium oxide (soda), and calcium oxide (lime). Borosilicate glass was developed to be physically and chemically stronger than soda lime glass. This type is used in laboratories when soda lime glass would not be able to handle the rough treatment of daily lab use. -Borosilicate glass if more durable and is able to handle drops better than soda lime glass -Borosilicate glass much lower coefficient of thermal expansion, so it can handle changes in temperature without shattering. -Borosilicate glass is more resistant to chemical attacks such as from acids. Soda lime glass would be more susceptible and would cause substances to leach from the glass into the sample.





E. Vials

What is the use of Scintillation Vials?


The main purpose is for an analytical technique, liquid scintillation counting, which detects the activity of a radioactive material in a sample. Before use in a liquid scintillation counter instrument, first, the sample is disolved or mixed into a mixture of a suitable solvent, a surfactant, and a scintillator.




What is the difference between Soda Lime and Borosilicate Glass?


Vials can be made with two types of materials, soda lime or borosilicate glass. Soda lime glass is the most commonly used glass in the world. It is composed of silicon dioxide (SiO2), sodium oxide (soda), and calcium oxide (lime). Borosilicate glass was developed to be physically and chemically stronger than soda lime glass. This type is used in laboratories when soda lime glass would not be able to handle the rough treatment of daily lab use. -Borosilicate glass if more durable and is able to handle drops better than soda lime glass -Borosilicate glass much lower coefficient of thermal expansion, so it can handle changes in temperature without shattering. -Borosilicate glass is more resistant to chemical attacks such as from acids. Soda lime glass would be more susceptible and would cause substances to leach from the glass into the sample.





C. Centrifuge tubes

What is the function of centrifuge tubes?


Centrifuge tubes are cylindrical shaped calibrated plastic or glass containers. They are designed to fit into the centrifuge slots for the analysis and separation of various materials.




Can centrifuge tubes be reused?


Usually, only centrifuge tubes made of fluorinated ethylene propylene (FEP) are durable enough to be reused. Polypropylene centrifuge tubes are recommended for single use to ensure the accuracy in the next usage.





C. Centrifuge tubes

What is the function of centrifuge tubes?


Centrifuge tubes are cylindrical shaped calibrated plastic or glass containers. They are designed to fit into the centrifuge slots for the analysis and separation of various materials.




Can centrifuge tubes be reused?


Usually, only centrifuge tubes made of fluorinated ethylene propylene (FEP) are durable enough to be reused. Polypropylene centrifuge tubes are recommended for single use to ensure the accuracy in the next usage.





E. Vials

What is the use of Scintillation Vials?


The main purpose is for an analytical technique, liquid scintillation counting, which detects the activity of a radioactive material in a sample. Before use in a liquid scintillation counter instrument, first, the sample is disolved or mixed into a mixture of a suitable solvent, a surfactant, and a scintillator.




What is the difference between Soda Lime and Borosilicate Glass?


Vials can be made with two types of materials, soda lime or borosilicate glass. Soda lime glass is the most commonly used glass in the world. It is composed of silicon dioxide (SiO2), sodium oxide (soda), and calcium oxide (lime). Borosilicate glass was developed to be physically and chemically stronger than soda lime glass. This type is used in laboratories when soda lime glass would not be able to handle the rough treatment of daily lab use. -Borosilicate glass if more durable and is able to handle drops better than soda lime glass -Borosilicate glass much lower coefficient of thermal expansion, so it can handle changes in temperature without shattering. -Borosilicate glass is more resistant to chemical attacks such as from acids. Soda lime glass would be more susceptible and would cause substances to leach from the glass into the sample.





F. Other

What are transducer protectors?


Transducer protectors are used in hemodialysis blood lines to keep the blood side of the circuit separated from the machine side and to prevent contamination of the machine by the blood flowing through the circuit. This contamination could be very dangerous and can lead to patient cross contamination with hepatitis B or other viruses. Transducer protectors let air pass while preventing the blood from passing through. TP's incorporate bacterial retentive membrane (0.2µm).
Features:
1. Hydrophobic membrane with 0.2 micron pore size.
2. Prevents contamination of the internal pressure monitoring lines.
3. Antibacterial hydrophobic air filter with female luer lock/male luer lock
4. Custom printed blister packaging available
5. Connects blood tubing to the dialysis machine.
6. Protective hydrophobic barrier allows only sterile air to pass through, protecting patients and equipment from cross-contamination
7. Prevents blood and dialyzing fluids from damaging sensitive transducer monitoring devices.




What is High Performance Liquid Chromatography (HPLC)?


High Performance Liquid Chromatography (HPLC) is a form of column chromatography that pumps a sample mixture or analyze in a solvent (known as the mobile phase) at high pressure through a column with chromatographic packing material (stationary phase). HPLC has the ability to separate, and identify compounds that are present in any sample that can be dissolved in a liquid in trace concentrations as low as parts per trillion. High performance liquid chromatography is now one of the most powerful tools in analytical chemistry. It has the ability to separate, identify, and quantitate the compounds that are presented in any sample that can be dissolved in a liquid. Because of this versatility, HPLC is used in a variety of industrial and scientific applications, such as pharmaceutical, environmental, forensics, and chemicals.




What is the function of air vent filter?


For the safety of the workers and your equipment, always use a vent filter. These devices act as barriers on air lines. They contain hydrophobic media, which prevent the entry of water and aerosols into sensitive equipment and also protect the lab environment from aerosolized pathogens. Vent filters can also enable air to enter and exit vessels such as bioreactors, while maintaining the sterility of the interior environment.




What kind of filter holders are there?


Filter holders are typically either in-line or open-face in design. In-line filter holders have a variety of inlet and outlet connections, and are used in closed filtration systems with either a pressure or vacuum source. In-line filters are ideal for measurement of feed water contamination. They are easy to open and close, and provide a positive, leak-proof seal. Upstream vents, available on some filter holders, allow for the release of trapped gas during liquid filtration. Open-face holders are typically used to take industrial hygiene samples. These holders are easily attached to personal sampling pumps via tubing, with an open inlet surface for impaction of airborne contamination.