Scientific Instrument Services, Inc. Supplies and Services for Mass Spectrometers, Gas Chromatographs, and Liquid Chromatographs.

APPI Sources from Syagen

Syagen's Atmospheric Pressure Photoionization source has been developed specifically for the Waters Micromass ZMD, LCT, Quattro Ultima, Quattro Ultima Platinum, Quattro II, QTof I & II "Fishbowl" Z Spray design and Thermo LCQ and Quantum Instruments.

APPI has become the method of choice for many applications because of important advantages over the conventional methods of atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI). The latter methods are based on the charge affinity of analyte molecule (e.g., protonation for positive ionization). Because the affinity for charge can vary widely for different molecules, the ionization efficiencies can likewise vary widely. Competition for charge can also lead to ion suppression. Photoionization works on a different principle. The excitation of a molecule by a photon can directly eject an electron if the photon energy exceeds the ionization potential of the molecule. This process is independent of the surrounding molecules, thereby reducing ion suppression effects.

APPI is also a soft ionization method that minimizes ion fragmentation. APPI is an important complement to ESI and APCI by expanding the range and classes of compounds that can be analyzed, including nonpolar molecules that are not easily ionized by ESI or APCI.

Experience the benefits of APPI and expand the capabilities of your LC/MS systems.

UOM=EA
Part No. Description est
wt.		 Quantity
In Stock		 Price Quantity
to order
00402 THERMO LCQ APPI SOURCE 01010 PHOTOIONIZATION LAMP REPLACEMENT ACCESSORY 0 0(#)$11000.00
00437 THERMO QUANTUM APPI SRCE 01010 PHOTOIONIZATION LAMP ACCESSORY 0 0(#)$12000.00
00669 WATERS FISHBOWL APPI SRC 01010 PHOTOIONIZATION LAMP ACCESSORY 0 0(#)$18000.00
01010 PHOTOIONIZATION LAMP APPI FOR APPI SOURCES 00402; 00437; 00669 0 0(#)$800.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.
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