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Á¦ Ç° ¸í : Headspace vial, cap&septa
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Headspace
QEC¡¯s expanded line of headspace products includes the best features for reliable and consistent performance:
•A selection of vial sizes and finishes, caps and seals to fit virtually any autosampler
•Bevel finish on crimp vials for the best possible seal
•Round bottoms available for even heating & safer operation at higher pressures
•Seals & caps with pre-inserted septa for convenience and less chance of contamination
•New selection of magnetic crimp seals and screw caps
•Quality manufactured of Type 1 borosilicate glass
•Meets of exceeds OEM instrument manufacturers specifications


Headspace Vials
QEC headspace vials provide uniform glass thickness which insures even heat distribution for consistent sampling reliability. All QEC headspace vials meet or exceed OEM instrument manufacturer¡¯s specifications. Bevel-finish headspace vials are available in 6mL, 10mL, and 20mL sizes. Screw-finish vials are available in 10mL and 20mL.
Ordering Information

Size

Color

Description

Pkg

Product No.

20mL

Clear

20mm, bevel finish, radius bottom

100

QIV.C-020-001R

10mL

Clear

20mm, bevel finish, radius bottom

100

QIV-C-010-001R

6mL

Clear

20mm, bevel finish, radius bottom

100

QIV-C-060-001R 

20mL

Clear

20mm, bevel finish, flat bottom

100

QIV-C-020-001F 

10mL

Clear

20mm, bevel finish, flat bottom

100

QIV-C-010-001F 

6mL

Clear

20mm, bevel finish, flat bottom

100

QIV-C-060-001F 

20mL

Clear

18mm, screw finish, radius bottom

100

QIV.C-018-020R 

10mL

Clear

18mm, screw finish, radius bottom

100

QIV-C-018-010R 

20mL

Amber

18mm, screw finish, radius bottom

100

QIV-A-018-020R 

10mL

Amber

18mm, screw finish, radius bottom

100

QIV-A-018-010R 




Magnetic Crimp Seals
Steel and Bimetal Crimp Closures
20mm steel crimps (5mm or 8mm hole) - Tried and true magnetic autosampler cap. Cost effective, they perform well with low evaporation even under high temp/pressure. Steel closures resist manual crimping. Use of an autocrimper is recommended for steel crimp closures.
20mm bi-metal crimp - Bi-metal crimps give the same performance of a steel crimp while being more pliable than steel. The aluminum edges allow much easier manual crimping, and the steel center allows use of a magnetic pick-up device.
Ordering Information

Size

Description

Pkg

Septa

Product No.

20mm

Red aluminum w/ steel center

100

0.125" natural PTFE, white silicone

QP2003-020-8076 

20mm

Red aluminum w/ steel center

100

0.118" natural PTFE, trans-blue silicone

QP2003-020-8127 

20mm

Red aluminum w/ steel center

100

PTFE/Butyl

QP2003-020-7637 

20mm

Gold-colored steel crimp closure

100

0.125" natural PTFE, white silicone

QP2003-020-9608 

20mm

Gold-colored steel crimp closure

100

0.118" natural PTFE, trans-blue silicone

QP2003-020-0164 

20mm

Gold-colored steel crimp closure

100

PTFE/Butyl

QP2003-020-0159 




Magnetic Screw Caps
Magnetic precision-thread screw caps present a convenient alternative to crimp caps designs. Caps come with 18mm liners already installed. The cap has an 8mm center aperture. QEC's 18mm screw closures give a good balance of performance, cost, and usability that has caused this product to grow in popularity.
Ordering Information

Size

Description

Pkg

Septa

Product No.

18mm

Silver steel screw closure

100

0.060" White PTFE, trans-blue silicone

QP2003-018-7715 

18mm

Silver steel screw closure

100

0.060" Blue PTFE, white silicone

QP2003-018-7712 

18mm

Silver steel screw closure

100

0.074" Red PTFE, white silicone

QP2003-018-7711 

18mm

Silver steel screw closure

100

0.060" Natural PTFE/Butyl

QP2003-018-7698 

18mm

Silver steel screw closure

100

0.125" Natural PTFE, white silicone

QP2003-018-8074




Aluminum Crimp Seals
Aluminum seals are the preferred choice for use with manual crimping tools, and for auto samplers that do not employ magnetic pick-up transport.
QEC's 20mm aluminum seals are available with septa pre-inserted for convenience and to reduce contamination due to handling. Choose natural silicone septa with white PTFE or white silicone septa with white PTFE.
Seals may also be purchased with no septa.
Ordering Information

Size

Description

Pkg

Septa

Product No.

20mm

Aluminum

100

natural PTFE, natural silicone, 0.125¡±

QP3242-020-700A

20mm

Aluminum

1000

natural PTFE, natural silicone, 0.125¡±

QP3242-020-700

20mm

Aluminum

100

natural PTFE, white silicone

QP3242-020-005A

20mm

Aluminum

1000

natural PTFE, white silicone

QP3242-020-005

20mm

Aluminum

1000

No Septa, Seals Only

QIC-A-020-001




Headspace Septa
Low-Bleed PTFE/Silicone is one of the most commonly used headspace septa materials, and the one with the best per formance characteristics.
The PTFE provides a barrier for chemical resistance. The Silicone layer provides an analytically clean backing material that ensures a good seal with the surface of the vial, and affords some degree of resealability when punctured. Silicone is also the best choice for high temperature work as it will perform up to about 200 C.
Ordering Information

Size

Description

Pkg

Product No.

20mm

Natural PTFE/Natural Silicone - Loose Septa Only, fits 20mm seals

100

QP3200-020-700A 

20mm

Natural PTFE/Natural Silicone - Loose Septa Only , fits 20mm seals

1000

QP3200-020-700 
 

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