Caps and Seals

Closures are the already assembled combination of the cap and sealing disc. In order to carry out a correct analysis, it is important that the seal is also inert and uncontaminated, in addition to the sample bottle. Various closures, such as snap ring, roller edge, flanging or screw caps, are available for the sample bottles. In addition to the suitability of sample bottle and closure for the used autosampler, the personal preferences in handling are also decisive. Can the flanging or screwing of the vials be better integrated into the working process? Should the closed bottle be opened quickly and easily?

 

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Product Image of SureSTART 20 mm, red Aluminum/mag. Tinplate, Crimp Cap, Level 3, blue Silicone/clear PTFE Septum, Soft, 3 mm, 100 pc/PAK
SureSTART 20 mm, red Aluminum/mag. Tinplate, Crimp Cap, Level 3, blue Silicone/clear PTFE Septum, Soft, 3 mm, 100 pc/PAK
Item number: TF6PBCC20-ST3
Brand: Thermo Fisher Scientific
$104.70
Product Image of SureSTART 9 mm, blue PP, Screw Cap, Level 2, + white Silicone/beige PTFE Septum, Pre-slit, bonded, 1 mm, 100 pc/PAK
SureSTART 9 mm, blue PP, Screw Cap, Level 2, + white Silicone/beige PTFE Septum, Pre-slit, bonded, 1 mm, 100 pc/PAK
Item number: TF6ASC9STBS1
Brand: Thermo Fisher Scientific
$45.67
Product Image of SureSTART 9 mm, blue PP, Screw Cap, Level 2, + white Silicone/beige PTFE Septum, bonded, 1 mm, 100 pc/PAK
SureSTART 9 mm, blue PP, Screw Cap, Level 2, + white Silicone/beige PTFE Septum, bonded, 1 mm, 100 pc/PAK
Item number: TF6ASC9STB1
Brand: Thermo Fisher Scientific
$34.53
Product Image of SureSTART 9 mm, red PP, Screw Cap (AVCS), Level 2, + white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 9 mm, red PP, Screw Cap (AVCS), Level 2, + white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ASC9ST1R
Brand: Thermo Fisher Scientific
$34.53
Product Image of SureSTART 9 mm, blue PP, Screw Cap, AVCS, Level 2, + white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 9 mm, blue PP, Screw Cap, AVCS, Level 2, + white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ASC9ST1
Brand: Thermo Fisher Scientific
$34.53
Product Image of SureSTART 9 mm, red PP, Screw Cap (AVCS), Level 2, + red Silicone/white PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 9 mm, red PP, Screw Cap (AVCS), Level 2, + red Silicone/white PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ASC9RT1R
Brand: Thermo Fisher Scientific
$32.30
Product Image of SureSTART 13 mm, black PP, Screw Cap, Level 2, + white Silicone/red PTFE Septum, 1.5 mm, 100 pc/PAK
SureSTART 13 mm, black PP, Screw Cap, Level 2, + white Silicone/red PTFE Septum, 1.5 mm, 100 pc/PAK
Item number: TF6ASC13ST15
Brand: Thermo Fisher Scientific
$60.15
Product Image of SureSTART 11 mm, blue PE, Snap Cap, Level 2, white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 11 mm, blue PE, Snap Cap, Level 2, white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ARC11ST1
Brand: Thermo Fisher Scientific
$28.96
Product Image of SureSTART 20 mm, Silver Aluminum, Pressure Release, Crimp Cap, Level 2, white Silicone/beige PTFE Septum, 3 mm, 100 pc/PAK
SureSTART 20 mm, Silver Aluminum, Pressure Release, Crimp Cap, Level 2, white Silicone/beige PTFE Septum, 3 mm, 100 pc/PAK
Item number: TF6APRCC20-ST1
Brand: Thermo Fisher Scientific
$70.18
Product Image of SureSTART 20 mm, Silver Aluminum, Crimp Cap, Level 2, black Butyl/grey PTFE Septum, Molded Pharmafix, 3 mm, 100 pc/PAK
SureSTART 20 mm, Silver Aluminum, Crimp Cap, Level 2, black Butyl/grey PTFE Septum, Molded Pharmafix, 3 mm, 100 pc/PAK
Item number: TF6ACC20-PFT
Brand: Thermo Fisher Scientific
$111.38
Product Image of SureSTART 11 mm, Silver Aluminum, Crimp Cap, Level 2, white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 11 mm, Silver Aluminum, Crimp Cap, Level 2, white Silicone/red PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ACC11ST1
Brand: Thermo Fisher Scientific
$35.64
Product Image of SureSTART 11 mm, Silver Aluminum, Crimp Cap, Level 2, red Silicone/clear PTFE Septum, 1 mm, 100 pc/PAK
SureSTART 11 mm, Silver Aluminum, Crimp Cap, Level 2, red Silicone/clear PTFE Septum, 1 mm, 100 pc/PAK
Item number: TF6ACC11RT1
Brand: Thermo Fisher Scientific
$18.93
Product Image of SureSTART 20 mm Stoppers, Level 2, grey Bromobutyl Rubber Septum, 3 mm, 100 pc/PAK
SureSTART 20 mm Stoppers, Level 2, grey Bromobutyl Rubber Septum, 3 mm, 100 pc/PAK
Item number: TF6A20BS
Brand: Thermo Fisher Scientific
$24.50
Product Image of Gold Plated Inlet Seal with Washer
Gold Plated Inlet Seal with Washer
Item number: AG5188-5367
Brand: Agilent Technologies
$60.14
Product Image of Cap, screw, blue, certified, bonded preslit PTFE/silicone septa, 100pc/PAK
Cap, screw, blue, certified, bonded preslit PTFE/silicone septa, 100pc/PAK
Item number: AG5185-5824
Brand: Agilent Technologies
$53.90
Product Image of Magnetic Screw Cap, N18, silver, closed top Silicone white/PTFE blue, 45° shore A, 1.5 mm, 100pc/PAK
Magnetic Screw Cap, N18, silver, closed top Silicone white/PTFE blue, 45° shore A, 1.5 mm, 100pc/PAK
Item number: MN702140
Brand: Macherey-Nagel
$104.00
Product Image of Blanking plug, finger-tight style
Blanking plug, finger-tight style
Item number: AG5020-8294
Brand: Agilent Technologies
$27.91
Product Image of SCREW CAPS 15 MM OPEN TOP
SCREW CAPS 15 MM OPEN TOP
Item number: TFTS-13216
Brand: Thermo Fisher Scientific
$64.88
Product Image of Caps/Septa, Crimp, Headspace, 20 mm, bimetal magnetic, PTFE/Silicone Septa, 100 pc/PAK
Caps/Septa, Crimp, Headspace, 20 mm, bimetal magnetic, PTFE/Silicone Septa, 100 pc/PAK
Item number: AG8010-0420
Brand: Agilent Technologies
$84.45
Product Image of CAP/SEPTA PTFE SILICONE ASSY (100)
CAP/SEPTA PTFE SILICONE ASSY (100)
Item number: WTWAT094174
Brand: Waters
$34.00
Product Image of WISP 1ML VIAL CAPS 1000/PK
WISP 1ML VIAL CAPS 1000/PK
Item number: WTWAT078515
Brand: Waters
$99.00
Product Image of Black Phenolic Screw Neck Cap, 144 pc/PAK
Black Phenolic Screw Neck Cap, 144 pc/PAK
Item number: WTWAT072711
Brand: Waters
$99.00
Product Image of SEALING CAP
SEALING CAP
Item number: WTWAT058959
Brand: Waters
$222.00
Product Image of VIAL CAP 10MM SCREW 100PK
VIAL CAP 10MM SCREW 100PK
Item number: WTWAT058875
Brand: Waters
$8.00
Product Image of C/CAP PTFE/SIL/PTFE 12MM 100
C/CAP PTFE/SIL/PTFE 12MM 100
Item number: WTPSL404231
Brand: Waters
$44.00
Product Image of C/CAP SIL/PTFE SEP 12MM 100
C/CAP SIL/PTFE SEP 12MM 100
Item number: WTPSL404219
Brand: Waters
$33.00
Product Image of 9 mm solid black cap with PTFE/silicone liner, 1
9 mm solid black cap with PTFE/silicone liner, 1
Item number: WT186007187
Brand: Waters
$45.00
Product Image of Cap-mat square plugs, sil/PTFE, Slit,5Pk
Cap-mat square plugs, sil/PTFE, Slit,5Pk
Item number: WT186006335
Brand: Waters
$90.00
Product Image of Cap-mat, 7 mm round plug, silicone/PTFE
Cap-mat, 7 mm round plug, silicone/PTFE
Item number: WT186006333
Brand: Waters
$76.00
Product Image of Cap-mat,7mm round plug,sil/PTFE,Slit,5Pk
Cap-mat,7mm round plug,sil/PTFE,Slit,5Pk
Item number: WT186006332
Brand: Waters
$90.00
Product Image of Lt Bl Cap12x32 CV Vials w PSlt PTFE Sil
Lt Bl Cap12x32 CV Vials w PSlt PTFE Sil
Item number: WT186005829
Brand: Waters
$51.00
Product Image of Blk Cap for 12x32mm vial w PTFE Sil Sept
Blk Cap for 12x32mm vial w PTFE Sil Sept
Item number: WT186005826
Brand: Waters
$37.00
Product Image of Cap, 20-400 w/Cross Slit Septa, 100/pk
Cap, 20-400 w/Cross Slit Septa, 100/pk
Item number: WT186004632
Brand: Waters
$78.00
Product Image of PE Septa-less Screw Cap 100/pk
PE Septa-less Screw Cap 100/pk
Item number: WT186004169
Brand: Waters
$29.00
Product Image of Snap Cap Red 12x32 w/PTFE/Sil Septa
Snap Cap Red 12x32 w/PTFE/Sil Septa
Item number: WT186002650
Brand: Waters
$41.00
Product Image of Snap Cap Black 12x32 w/PTFE/Sil Septa
Snap Cap Black 12x32 w/PTFE/Sil Septa
Item number: WT186002649
Brand: Waters
$41.00
Product Image of Snap Cap Blck 12x32 w/PS PTFE/Sil Septa
Snap Cap Blck 12x32 w/PS PTFE/Sil Septa
Item number: WT186002648
Brand: Waters
$47.00
Product Image of Snap Cap Red 12x32 w/PS PTFE/Sil Septa
Snap Cap Red 12x32 w/PS PTFE/Sil Septa
Item number: WT186002647
Brand: Waters
$47.00
Product Image of PolyProp Mat Caps for 186002482
PolyProp Mat Caps for 186002482
Item number: WT186002484
Brand: Waters
$200.00
Product Image of PolyProp Mat Caps for round Plates 50/Pk
PolyProp Mat Caps for round Plates 50/Pk
Item number: WT186002483
Brand: Waters
$200.00
Product Image of White scr Cap w/bnd pre-slt PTFE/Sil
White scr Cap w/bnd pre-slt PTFE/Sil
Item number: WT186002457
Brand: Waters
$45.00
Product Image of White 9mm Cap w/Bnded PTFE Sil.Septa 100
White 9mm Cap w/Bnded PTFE Sil.Septa 100
Item number: WT186002456
Brand: Waters
$40.00
Product Image of Green Poly. Scr. Cap w/bnded PTFE/Sil
Green Poly. Scr. Cap w/bnded PTFE/Sil
Item number: WT186002130
Brand: Waters
$35.00
Product Image of Red Poly. Scr. Cap w/bnded PTFE/Sil Sept
Red Poly. Scr. Cap w/bnded PTFE/Sil Sept
Item number: WT186002129
Brand: Waters
$40.00
Product Image of Red Scr. Cap Pre-slt 9mm w/bnded PTFE
Red Scr. Cap Pre-slt 9mm w/bnded PTFE
Item number: WT186002128
Brand: Waters
$48.00
Product Image of Green Scr. Cap Pre-slt 9mm w/bnded PTFE
Green Scr. Cap Pre-slt 9mm w/bnded PTFE
Item number: WT186002127
Brand: Waters
$45.00
Product Image of Cap, 20-400 scr thrd, open top blk phen
Cap, 20-400 scr thrd, open top blk phen
Item number: WT186001421
Brand: Waters
$60.00
Product Image of Cap Mat, PTFE/Silicone 96 WS PRE-SL 5/P
Cap Mat, PTFE/Silicone 96 WS PRE-SL 5/P
Item number: WT186000857
Brand: Waters
$146.00
Product Image of Cap,Blk poly,bnd prsl PTFE/sil spta 100/
Cap,Blk poly,bnd prsl PTFE/sil spta 100/
Item number: WT186000842
Brand: Waters
$74.00
Product Image of Cap,Blk polypro,w/bnd PTFE/sil spta 100/
Cap,Blk polypro,w/bnd PTFE/sil spta 100/
Item number: WT186000841
Brand: Waters
$58.00

Choice of the appropriate closure depending on the type of bottle

Depending on the type of bottle used, the appropriate closure must be selected:

  • Screw caps: Open (for use with various septa) or closed (for sample storage)
  • Short thread caps: Open (for septa use) or closed (for sample storage)
  • UltraBond screw caps: For ND9 and ND24; The caps and septums are inextricably linked.
  • Flanging caps: With the septum ready assembled
  • Headspace caps: Safety caps for headspace analyzes with a predetermined breaking line, in order to avoid bursting of the bottle if the internal pressure is too high.
  • Snap-on caps: Hard or soft polyethylene; Only open (for use of septa)
  • The short thread and crimp caps are also available in magnetic design for the respective car samplers (e.g., CTC).

Fluorine-free septa and PP vials for PFAS analysis

Fluorine-free septa are ideal for PFAS analysis or the analysis of fluorinated / halogenated organic compounds. Macherey-Nagel caps and septa suitable for PFAS analysis are made of PP or PE. They feature a polyimide coating instead of a PTFE lamination as a chemical resistant barrier on the silicone carrier material. This prevents the migration of fluorine into the sample. The silicone carrier material is of high analytical purity and easy to penetrate. You can choose from fluorine-free ND 9 screw caps and ND 11 snap ring caps.  In the snap ring closure, the septum is mounted in a soft snap ring cap which can be easily pressed onto the bottle or removed.

Also, for PFAS analysis vials made of polypropylene should be used: The adsorption effects are lower with plastic bottles than with glass bottles or even silanized glass bottles.