Dupont 21-490/21-491/21-492 Ceramic Insulators

Part No.	Dupont #	OD (in)	ID (in)	Thickness (in)	est wt.	Quantity In Stock	Price	Quantity to order
UOM=EA
DST1	Ceramic Post
DST1	291656-1	0.215	0.095	0.50	0.25	0^{[*L]Standard lead-time for out-of-stock items is approximately two weeks depending on the item.}	---	---
DST2	Ceramic Insulator
DST2	294026-3	0.344	0.225	0.235	0.25	39	$34.00^{[A][A] 10 or more: 5% off; 50 or more: 10% off.}
DST3	Ceramic Insulator
DST3	294026-2	0.344	0.225	0.100	0.25	44	$32.50^{[A][A] 10 or more: 5% off; 50 or more: 10% off.}
DST4	Ceramic Insulator
DST4	294026-1	0.344	0.225	0.050	0.25	0^{[*L]Standard lead-time for out-of-stock items is approximately two weeks depending on the item.}	$24.00^{[A][A] 10 or more: 5% off; 50 or more: 10% off.}
Bulk quantity discounts on marked items: [*A] 10 or more: 5% off; 50 or more: 10% off.
[*L] Standard lead-time for out-of-stock items is approximately two weeks depending on the item. (#) Call for availability.
Ordering information. International (non-US) prices available through your local dealer.

SIS Catalog Cross Reference
Page #	Part Numbers
A76 - Ceramic Insulators	DST2, DST3

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Index of Parts and Supplies for Dupont/CEC Mass Specs

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28 Aug 2013: Nanoliter Dispensing Devices can be used to place media on the MALDI plates for MALDI/TOF instruments, but the most exciting ability of this device is to collimate droplets directly into the ion source like electrospray (ESI), the unique concept being that nearly 100% of the droplets go directly into the source versus <1% from ESI, giving a huge increase in sensitivity. We believe this could be the next big advance in LC/MS sources. [NEW]
01 June 2013: SIS June Newsletter; ASMS 2013, SIMION/Nist, heated capillary & ion transfer tube for Thermo, and NE-300 syringe pump
26 April 2013: SIS April Newsletter; Micromass/waters , ESI Probe Capillary & Perlast® O-rings [NEW]
06 March 2013: SIS coming to Pittcon 2013; The Bullet blender and the Digivac digital vacuum gauge [NEW]
15 May 2012: Long-life MS Filaments with Yttria coated SISAlloy® (Yttria/Rhenium Alloy) Wire. [NEW]

Yttria coated filament at start
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23 April 2012: Rotary vane vacuum pumps and two-stage vacuum filter.
3 April 2012: HPLC: Imtakt columns and NewEra syringe pump
January 2012: New Pumps Added to the List of LOW COST S.I.S. Rotary Vane Vacuum Pumps - Save 35 - 50% off the price of comparable vacuum pumps.
Nov 2011: Telatemp Measurement and Recording Devices The Industry's Most Advanced Temperature Measurement & Recording Products
Oct 2011: Reducing MS Filament Warping (Article/ASMS2011)- A study on reduction of MS filament warping by use of various filament shapes and Yttria/Rhenium alloy. (SIS Application Note #96)
June 2011: Adixen (Alcatel) ACP Series Compact Dry Roughing Pumps - a frictionless pumping module, optimized for operation without internal lubricant.
June 2011: NEW Products from SGE - SilFlow™ 3 Port/4Port Splitters,ConnecTite Inlet Liners, and EC and HT Septa
June 2011: NEW - SISAlloy® (Yttria/Rhenium Alloy) MS Filaments - Mass Spectrometer filaments that reduce or eliminate sagging.
April 2011: NIST 11 Mass Spectral Library (2011 version) - Update includes 242,893 fully evaluated EI mass spectra, GC data, rapidly growing MS/MS spectra (~9,934 ion trap & ~91,557 qtof/tandem-quad collision cell spectra), and enhanced software. Pre-orders taken today.
March 2011: NEW - Handheld Digital Microscope View and capture images or video at 10x/150x power on a PC computer via attached USB cable.
March 2011: OHAUS Moisture Analyzers
Jan 2011:Next-Advance Lab Products - affordable molecular biology instruments that automate mundane tasks, freeing scientists for repetitive, time consuming procedures.
Dec 2010:NEW Filament - Direct Replacement for the Shimadzu QP5000 Filament.
Sept 2010PCI Analytics Products - product solutions for all Analytical Instrumentation
Aug 2010: GC/LC/MS courses in 2010
Jul 2010: SilTite™ FingerTite, the next generation GC capillary ferrule system without the use of any tools. (25% discount until Oct 31)
Jun 2010: Direct Replacement for the Heated Capillary in the Thermo-Fisher Scientific TSQ & LCQ Mass Spectrometers now available
Apr 2010: Triode & Mini Bayard-Alpert Hot Ionization Gauges - Ideal for use in analytical instrumentation
Feb 2010: SGE eVol®Hand-held Automated Analytical Syringe - Will improve your laboratory workflow and reporting confidence in many ways
Feb 2010: DigiVac Bench Top Vacuum Gauges - Vacuum instrumentation with everything you need to go to work
Nov 2009: Adam Analytical Balances and Moisture Analyzers.
Nov 2009: Imtakt HPLC Columns -offer a wide variety of unique stationary phases in their HPLC columns
Oct 2009: Advanced Oil-less Rocking Piston Pumps - oil-free, lightweight, low noise
Sep 2009: Programmable syringe pumps for controlled flow. Model NE-300 priced at only $275.00
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Jun 2009: NEW: LOW COST S.I.S. Rotary Vane Vacuum Pumps - Save 35 - 50% off the price of comparable vacuum pumps.
Mar 2009: Mass Spec Source Newsletter - Spring 2009.
Mar 2009: New laboratory supply product line
Jun 2009: NIST 08
Identify mass spectra via library search with the fully-evaluated, most widely used mass spectral reference library, compiled by the National Institute of Standards and Technology (NIST).
, NIST GC
Database of 44,008 compounds common in GC analysis, each with name, synonyms, chemical formal, chemical structure diagram, ID/CAS number, and GC retention index data.
, Wiley - MS databases
Feb 2009: Handheld Digital Microscope
View and capture images or video at 20x/400x power on a PC computer via attached USB cable.
Sep 2007: 2008-2009 SIS Scientific Supply Catalog

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