Use of field desorption mass spectra of polystyrene and polypropylene glycol as mass references up to mass 10000

Silver nitrate chemical ionization for analysis of hydrocarbon polymers by laser desorption fourier transform mass spectrometry

“…Possibly because of the presence of multiple aromatic rings, polystyrene is one of the more tractable hydrocarbon polymers when analyzed using standard volatilization/ionization methods. For example, polystyrenes have been studied by laser desorption/ ionization [1,2], secondary ion mass spectrometry [3][4][5][6][7], field desorption-ionization/mass spectrometry (FO/MS) [8][9][10], plasma desorption ionization [11], laser desorption/resonance-enhanced multiphoton ionization [12], liquid chromatography/mass spectrometry [13], and thermal desorption electron ioniza-tion and chemical ionization mass spectrometry [14,15]. Most recently, polystyrenes have also been characterized by matrix-assisted laser desorption/ionization [16,17].…”

Reduced fragmentation in liquid injection field desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry by use of helium for the thermalization of molecular ions

“…Polystyrenes have already been analyzed in the early years of FD‐MS . They form abundant molecular ions and should not present any difficulty for modern FD or LIFDI instrumentation.…”

Fabrication of protein microarrays using the electrospray deposition (ESD) method: Application of microfluidic chips in immunoassay

“…For example, proteins have been deposited using photolithography and lift-off techniques [7,8], a robotic micromanipulation system that includes ink jet printing [9], a stamp micro-contact printing method [10], and electrospray deposition (ESD) techniques [11,12]. The ESD method was first used to fabricate thin radioactive sources in nuclear physics and was applied to the formation of layers of semi-conductive ceramics such as metal oxide films [13], the formation of protective polymer coatings on electrode surfaces [14], the modification of silicon surfaces with layers of silkforming peptides to enhance the adhesion of living cells, the preparation of DNA and protein samples for scanning tunneling microscopy [15], and ionization in mass spectrometry [16]. As a result, ESD seems to be the most useful technique because it allows for spontaneous deposition of many identical dots with a very high spatial resolution [17].…”