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G:PHYSICS  
 G01: INSTRUMENTS; MEASURING (counting G06M); TESTING  
  G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (separating components of materials in general B01D, B01J, B03, B07; apparatus fully provided for in a single other subclass, see the relevant subclass, e.g. B01L; measuring or testing processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q; investigation of foundation soil in situE02D1/00; sensing humidity changes for compensating measurements of other variables or for compensating readings of instruments for variations in humidity, seeG01D or the relevant subclass for the variable measured; testing or determining the properties of structures G01M; measuring or investigating electric or magnetic properties of materials G01R; systems or methods in general, using reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; determining sensivity, graininess, or density of photographic materials G03C5/02; testing component parts of nuclear reactors G21C17/00; {controlling or regulating non-electric variables G05D; measuring degree of ionisation of ionised gases, i.e. plasma H05H1/0006; testing electrographic developer properties G03G15/0848})  
   G01N30/00: Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (G01N3/00 - G01N29/00 take precedence; separation for the preparation or production of components B01D15/00, B01D53/02, B01D53/14; solid sorbent compositions in general B01J20/00; ion-exchange in general B01J39/00 - B01J49/00){or field flow fractionation (for preparation or production of components B01D21/00, B01D43/00, B01D45/00 or B03C)}  
   G01N30/0005: Field flow fractionation  
   G01N30/02: Column chromatography  
   G01N30/04: . . Preparation or injection of sample to be analysed  
   G01N30/06: . . . Preparation  
   G01N30/08: . . . . using an enricher  
   G01N30/10: . . . . using a splitter  
   G01N30/12: . . . . by evaporation  
   G01N30/14: . . . . by elimination of some components  
   G01N30/16: . . . Injection (G01N30/24 takes precedence)  
   G01N30/18: . . . . using a septum or microsyringe  
   G01N30/20: . . . . using a sampling valve  
   G01N30/22: . . . . in high pressure liquid systems  
   G01N30/24: . . . Automatic injection systems  
   G01N30/26: . . Conditioning of the fluid carrier; Flow patterns  
   G01N30/28: . . . Control of physical parameters of the fluid carrier  
   G01N30/30: . . . . of temperature  
   G01N30/32: . . . . of pressure or speed (G01N30/36 takes precedence)  
   G01N30/34: . . . . of fluid composition, e.g. gradient (G01N30/36 takes precedence)  
   G01N30/36: . . . . in high pressure liquid systems  
   G01N30/38: . . . Flow patterns  
   G01N30/40: . . . . using back flushing  
   G01N30/42: . . . . using counter-current  
   G01N30/44: . . . . using recycling of the fraction to be distributed  
   G01N30/46: . . . . using more than one column {G01N30/44 takes precedence}  
   G01N30/461: . . . . . with serial coupling of separation columns  
   G01N30/462: . . . . . . with different eluents or with eluents in different states (G01N30/463 takes precedence)  
   G01N30/463: . . . . . . for multidimensional chromatography  
   G01N30/465: . . . . . . with specially adapted interfaces between the columns  
   G01N30/466: . . . . . with separation columns in parallel  
   G01N30/467: . . . . . . all columns being identical  
   G01N30/468: . . . . . involving switching between different column configurations  
   G01N30/48: . . Sorbent materials therefor  
   G01N30/482: . . . Solid sorbents  
   G01N30/50: . . Conditioning of the sorbent material or stationary liquid  
   G01N30/52: . . . Physical parameters  
   G01N30/54: . . . . Temperature  
   G01N30/56: . . . Packing methods or coating methods  
   G01N30/58: . . . the sorbent moving as a whole  
   G01N30/60: . . Construction of the column  
   G01N30/6004: . . . end pieces  
   G01N30/6017: . . . . Fluid distributors  
   G01N30/6021: . . . . Adjustable pistons  
   G01N30/6026: . . . . Fluid seals  
   G01N30/603: . . . . retaining the stationary phase, e.g. Frits  
   G01N30/6034: . . . joining multiple columns  
   G01N30/6039: . . . . in series  
   G01N30/6043: . . . . in parallel  
   G01N30/6047: . . . with supporting means; Holders  
   G01N30/6052: . . . body  
   G01N30/606: . . . . with fluid access or exit ports  
   G01N30/6065: . . . . with varying cross section  
   G01N30/6069: . . . . with compartments or bed substructure  
   G01N30/6073: . . . . in open tubular form  
   G01N30/6078: . . . . . Capillaries  
   G01N30/6082: . . . . transparent to radiation  
   G01N30/6086: . . . . form designed to optimise dispersion  
   G01N30/6091: . . . Cartridges  
   G01N30/6095: . . . Micromachined or nanomachined, e.g. micro- or nanosize  
   G01N30/62: . . Detectors specially adapted therefor  
   G01N30/64: . . . Electrical detectors  
   G01N30/66: . . . . Thermal conductivity detectors  
   G01N30/68: . . . . Flame ionisation detectors  
   G01N30/70: . . . . Electron capture detectors  
   G01N30/72: . . . Mass spectrometers {mass spectrometers per seH01J49/00}  
   G01N30/7206: . . . . interfaced to gas chromatograph (interfaces in general for introducing or extracting samples to be analysed with specially adapted mass spectrometer, seeH01J49/04)  
   G01N30/7213: . . . . . splitting of the gaseous effluent  
   G01N30/722: . . . . . through a gas permeable barrier (membranes, porous layers)  
   G01N30/7233: . . . . interfaced to liquid or superfluid chromatograph (interfaces in general for introducing or extracting samples to be analysed with specially adapted mass spectrometer, seeH01J49/04)  
   G01N30/724: . . . . . Nebulising, aerosol formation or ionisation (spraying or atomising in general B05B)  
   G01N30/7246: . . . . . . by pneumatic means  
   G01N30/7253: . . . . . . by thermal means, e.g. thermospray  
   G01N30/726: . . . . . . by electrical or glow discharge  
   G01N30/7266: . . . . . . by electric field, e.g. electrospray  
   G01N30/7273: . . . . . Desolvation chambers  
   G01N30/728: . . . . Intermediate storage of effluent, including condensation on surface  
   G01N30/7286: . . . . . the store moving as a whole, e.g. moving wire  
   G01N30/7293: . . . . Velocity or momentum separators  
   G01N30/74: . . . Optical detectors {measurement of intensity, velocity, spectral content, polarisation, or phase of infra-red, visible or ultra-violet light G01J}  
   G01N30/76: . . . Acoustical detectors {measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves G01H}  
   G01N30/78: . . . using more than one detector  
   G01N30/80: . . Fraction collectors  
   G01N30/82: . . . Automatic means therefor  
   G01N30/84: . . Preparation of the fraction to be distributed  
   G01N30/86: . . Signal analysis  
   G01N30/8603: . . . with integration or differentiation  
   G01N30/8606: . . . . Integration  
   G01N30/861: . . . . Differentiation  
   G01N30/8613: . . . . Dividing or multiplying by a constant  
   G01N30/8617: . . . . Filtering, e.g. Fourier filtering  
   G01N30/8624: . . . Detection of slopes or peaks; baseline correction  
   G01N30/8627: . . . . Slopes  
   G01N30/8631: . . . . Peaks  
   G01N30/8634: . . . . . Peak quality criteria  
   G01N30/8637: . . . . . Peak shape  
   G01N30/8641: . . . . Baseline  
   G01N30/8644: . . . . Data segmentation, e.g. time windows  
   G01N30/8651: . . . Recording, data aquisition, archiving and storage  
   G01N30/8655: . . . . Details of data formats  
   G01N30/8658: . . . Optimising operation parameters  
   G01N30/8662: . . . . Expert systems; optimising a large number of parameters  
   G01N30/8665: . . . for calibrating the measuring apparatus  
   G01N30/8668: . . . . using retention times  
   G01N30/8672: . . . . not depending on an individual instrument, e.g. retention time indexes or calibration transfer  
   G01N30/8675: . . . Evaluation, i.e. decoding of the signal into analytical information (for analysis of specific compounds see also G01N30/88 and subgroups of G01N33/00; chemical libraries per seC40B)  
   G01N30/8679: . . . . Target compound analysis, i.e. whereby a limited number of peaks is analysed  
   G01N30/8682: . . . . Group type analysis, e.g. of components having structural properties in common  
   G01N30/8686: . . . . Fingerprinting, e.g. without prior knowledge of the sample components  
   G01N30/8689: . . . . Peak purity of co-eluting compounds  
   G01N30/8693: . . . Models, e.g. prediction of retention times, method development and validation  
   G01N30/8696: . . . Details of Software  
   G01N30/88: . . Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86(signal analysis systems per seG06F, G06G)  
   G01N30/89: Inverse chromatography  
   G01N30/90: Plate chromatography, e.g. thin layer or paper chromatography  
   G01N30/91: . . Application of the sample  
   G01N30/92: . . Construction of the plate  
   G01N30/93: . . . Application of the sorbent layer  
   G01N30/94: . . Development  
   G01N30/95: . . Detectors specially adapted therefor; Signal analysis  
   G01N30/96: using ion-exchange (G01N30/02, G01N30/90 take precedence)