Technique Definition for Ion Mobility Spectroscopy The actual measurement sample A description of the carrier gas is given here. See Pure Appl. Chem. 73, 2001, 1765-1782. The water concentration in the carrier gas is relevant to the different ionization processes. It is strongly recommended that this value be reported. This is labeled volume fraction with the units parts per million (ppm). See Pure Appl. Chem. 73, 2001, 1765-1782. 1 This LDR is divided in two flow values. The first value is linked to the ionization chamber, the second is optional, if applied. All values have the unit litre/minute. See Pure Appl. Chem. 73, 2001, 1765-1782. Gas flow in drift chamber m s Gas flow in ionization chamber m s A description of the drift gas is required when used in addition to the carrier gas. See Pure Appl. Chem. 73, 2001, 1765-1782. This LDR defines the drift gas flow into the drift chamber when a separate gas is used here to the carrier gas. All values have the unit litre/minute. See Pure Appl. Chem. 73, 2001, 1765-1782. Gas flow in drift chamber m s Solvent used IMS full spectrum This is a set of values of dimension @length, containing the abscissa value for each raw data ordinate value. This set of values has a unit of time. See: ASTM E 1947-98. s s s s This is a set of values of dimension point-number, containing the abscissa value for each raw data ordinate value. This set of values has a unit of electrical current. See: ASTM E 1947-98 and Pure Appl. Chem. 73, 11, 2001, 1765-1782. A A A Parameters defining the measurement Number of transients averaged. See Pure Appl. Chem. 73, 2001, 1765-1782. Pressure inside the IMS system in kilopascal. See Pure Appl. Chem. 73, 2001, 1765-1782. m kg s The following keywords define how the system ionizes the gas: UV ultraviolet source BR beta radiation source AL alpha radiation source PD partial discharge CD corona discharge ESI electrospray ionization LI laser ionization LD laser desorption SI surface ionization SY synchrotron radiation See Pure Appl. Chem. 73, 2001, 1765-1782. UV BR AL PD CD ESI LI LD SI SY A description of the relevant ionization source details. See Pure Appl. Chem. 73, 2001, 1765-1782. The ionization energy in eV. See Pure Appl. Chem. 73, 2001, 1765-1782. kg m s A The polarity of the measured ions. Allowed values are POSITIVE or NEGATIVE. See Pure Appl. Chem. 73, 2001, 1765-1782. positive negative The time between subsequent shutter openings in milliseconds. See Pure Appl. Chem. 73, 2001, 1765-1782. The potential difference between the wires of the shutter in volts. See Pure Appl. Chem. 73, 2001, 1765-1782. m kg s A Shutter opening time in microseconds. Without knowing the time the shutter was open, it is not possible to calculate the individual mobilities. See Pure Appl. Chem. 73, 2001, 1765-1782. s Here, the first value is characterizing the temperature in the drift chamber, the second value is characterizing the temperature in the ionization chamber in °C. See Pure Appl. Chem. 73, 2001, 1765-1782. drift chamber K K K ionization chamber K K K The electric field description is divided in two parts: The field in the ionization chamber and the one in the drift chamber (in volt/centimeter). See Pure Appl. Chem. 73, 2001, 1765-1782. drift chamber kg s m A ionization chamber kg s m A Different geometrical parameters of the ionization or drift chamber are distinguished by the following keywords: RECT This means a rectangular chamber. It is followed by the size of the three dimensions length, width, and height in mm. CYL Stands for a cylindrical form of the chamber. It is followed by its length and radius in mm. See Pure Appl. Chem. 73, 2001, 1765-1782. length for rectangular chamber m width for rectangular chamber m height for rectangular chamber m length for cylindrical chamber m radius for cylindrical chamber m Different geometrical parameters of the ionization or drift chamber are distinguished by the following keywords: RECT This means a rectangular chamber. It is followed by the size of the three dimensions length, width, and height in mm. CYL Stands for a cylindrical form of the chamber. It is followed by its length and radius in mm. See Pure Appl. Chem. 73, 2001, 1765-1782. length for rectangular chamber m width for rectangular chamber m height for rectangular chamber m length for cylindrical chamber m radius for cylindrical chamber m IMS peak table Peak position value on x axis See Appl. Spectrosc. 42, 1988, 151-162. s s s s Peak number used to identify a particular peak. See: ASTM E 1947-98. Computed height of the peak; in a scaled data unit. The unit for this is the same as that of the raw-data. See: ASTM E 1947-98. A A A A The calculated width of the peak, given in a unit of time. See: ASTM E 1947-98. s s s s Computed area of the peak. See: ASTM E 1947-98. Chemical structure assigned to this peak (use Substance ID) (See: J. Hau, P. Lampen, R.J. Lancashire, R.S. McDonald, P.S. McIntyre, D.N. Rutledge, W. Schrader, A.N. Davies, JCAMP-DX V.6.00 for LC/MS (IUPAC Technical Note 2004) Draft Manuscript for Pure Appl. Chem.) This LDR contains a list of reduced mobilities and their assignments for each of the components, where K0 is the reduced mobility where the K0 values are the known reduced mobilities in cm2 V–1 s–1 given according to the formula: where K is the measured mobility at pressure P and temperature T. P0 is 101325 Pa, and T0 is 273 K. See Pure Appl. Chem. 73, 2001, 1765-1782. m s kg A Parameters defining the measurement Number of transients averaged. See Pure Appl. Chem. 73, 2001, 1765-1782. Pressure inside the IMS system in kilopascal. See Pure Appl. Chem. 73, 2001, 1765-1782. m kg s The following keywords define how the system ionizes the gas: UV ultraviolet source BR beta radiation source AL alpha radiation source PD partial discharge CD corona discharge ESI electrospray ionization LI laser ionization LD laser desorption SI surface ionization SY synchrotron radiation See Pure Appl. Chem. 73, 2001, 1765-1782. UV BR AL PD CD ESI LI LD SI SY A description of the relevant ionization source details. See Pure Appl. Chem. 73, 2001, 1765-1782. The ionization energy in eV. See Pure Appl. Chem. 73, 2001, 1765-1782. kg m s The polarity of the measured ions. Allowed values are POSITIVE or NEGATIVE. See Pure Appl. Chem. 73, 2001, 1765-1782. positive negative The time between subsequent shutter openings in milliseconds. See Pure Appl. Chem. 73, 2001, 1765-1782. The potential difference between the wires of the shutter in volts. See Pure Appl. Chem. 73, 2001, 1765-1782. m kg s A Shutter opening time in microseconds. Without knowing the time the shutter was open, it is not possible to calculate the individual mobilities. See Pure Appl. Chem. 73, 2001, 1765-1782. s Here, the first value is characterizing the temperature in the drift chamber, the second value is characterizing the temperature in the ionization chamber in °C. See Pure Appl. Chem. 73, 2001, 1765-1782. drift chamber K K K ionization chamber K K K The electric field description is divided in two parts: The field in the ionization chamber and the one in the drift chamber (in volt/centimeter). See Pure Appl. Chem. 73, 2001, 1765-1782. drift chamber kg s m A ionization chamber kg s m A Different geometrical parameters of the ionization or drift chamber are distinguished by the following keywords: RECT This means a rectangular chamber. It is followed by the size of the three dimensions length, width, and height in mm. CYL Stands for a cylindrical form of the chamber. It is followed by its length and radius in mm. See Pure Appl. Chem. 73, 2001, 1765-1782. length for rectangular chamber m width for rectangular chamber m height for rectangular chamber m length for cylindrical chamber m radius for cylindrical chamber m Different geometrical parameters of the ionization or drift chamber are distinguished by the following keywords: RECT This means a rectangular chamber. It is followed by the size of the three dimensions length, width, and height in mm. CYL Stands for a cylindrical form of the chamber. It is followed by its length and radius in mm. See Pure Appl. Chem. 73, 2001, 1765-1782. length for rectangular chamber m width for rectangular chamber m height for rectangular chamber m length for cylindrical chamber m radius for cylindrical chamber m Parameters describing the instrument Name of the instrument vendor. Name of the instrument model.