甲氧基和羟基吸电子作用检测标准

Ultraviolet absorber-2-Hydroxy-4-n-octoxybenzophenone(UV-531)

Food contact materials - Polymer - Determination of 2-hydroxy-4-methoxy-benzophenon in food simulants - High performance liquid chromatography

Cosmetic raw materials. Sunscreens. 5-phenylmethoxo-4-hydroxy-2-methoxysulfonic acid.

Cosmetic raw materials. Sunscreens. 2-Hidroxy-4-methoxy fenone (oxibenzone).

Cosmetic raw materials. 5-phenylmethoxo-4-hydroxy-2-methoxysulfonic acid.

Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{[4-(2-ethyl-hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl).

Water quality－Determination of selected phenoxyalkanoic herbicides,including bentazones and hydroxybenzonitriles by gas chromatographyand mass spectrometry after solid phase extraction and derivatization

Water quality — Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization

Water quality. Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization

Water quality - Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization (ISO 15913:2000)

Water quality — Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization

Water quality - Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivatization (ISO 15913:2000)

Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{(4-(2-ethyl-hexyloxy)-2-hydroxy)-phenyl}-6-(4-methoxyphenyl) and 2,2-methylene-bis-6-(2H-benzotriazol-2-yl)-4-(tetramethyl-butyl)-1,1,3,3-phenol. Determination by liquid chromatography.