The invention provides an analytical apparatus comprising: (i) supply means (14) for supplying a sample (30) to be analysed; (ii) analysing means (32, 36) for analysing at least one property of the sample (30) to be analysed; and (iii) conveying means (16) for conveying the sample (30) between the supply means (14) and the analysing means (32, 36) wherein the conveying means (16) comprises an oxidised surface (18) layer which receives the sample (30). Preferably the conveying means (16) is a wire or tape, such as titanium.
