Table 1: Number of works published in the period 2001–2011 found through a search in the database Food Science and Technology Abstracts (FSTA) using as key terms the names of the analytical technique indicated in each case.

TechniqueNumber of ref.

Sample preparation
 Microwave-assisted extraction384
 Headspace2571
 Solid phase extraction 3866
 Supercritical fluid extraction680
 Purge and trap151
 Flow injection analysis393
 Pressurized liquid extraction436
 Microextraction2201

Biological
 Biosensors750
 PCR7085
 Microbiological analysis416
 Recombinant DNA220
 Immunological techniques3008
 Othersa118

Separation
 Liquid chromatography8927
 Gas chromatography4798
 SDS/PAGE3227
 Capillary electrophoresis1155
 Supercritical fluid chromatography51
 LC LC, LC-LC27
 GC GC, GC-GC210
 LC-GC38

Spectroscopic
 Mass spectrometry5030
 Fluorescence4807
 NMR3735
 Infrared2369
 X-ray2119
 Ultraviolet1429
 Atomic spectroscopy1046
 Electron spectroscopy1026
 Light scattering891
 Circular dichroism468
 Othersb932

Rheological
 Creep205
 Oscillatory shear203
 Rheometry195
 Viscometry163
 Stress relaxation145
 Normal stress32

Thermal
 DSC551
 Thermogravimetry17
 The mochemical16
 Differential thermal analysis9

Radiochemical
 Radioimmunoassay96
 Isotopic140
 Radiochemical31
 Radiometric18
 Radioisotope8
 Radiotracer5
 Radiolabelling2

Electrochemical
 Biosensors750
 Voltammetry532
 Potentiometry234
 Amperometry245
 Polarography47
 Conductometry43
 Coulometry32

aThe group “others” includes radioimmunoassay and enzymatic analysis.
bThe group “others” includes raman (402), electron spin resonance (366), dielectric spectroscopy (57), refractometry (54), polarimetry (38), chemiluminescence (15), and photoacoustic (0).