| 摘要 |
Apparatus for determining the fat and oil content of a sample comprises a pliable, porous, hydrophilic and lipophillic sample pad (63), formed of glass fibres or quartz fibres and substantially transparent to microwave radiation. The sample is placed on the sample pad which in turn is placed on a wrapper (62) of sheet material that is non-porous to fats, oils and other liquids and is free of atoms that would interfere with or mask the NMR response in said analyser of the protons in fats and oils, said wrapper being large enough to wrap said sample pad with a sample thereon but small enough to fit within the sample field portion of an NMR analyser (36) when wrapped around the sample pad. The apparatus further includes a source (20) of microwave radiation for drying the sample, a cavity (24) in wave communication with said microwave source for receiving the sample and sample pad and a balance (28) with at least its pan inside cavity for weighing the sample and sample pad. |
