醇羟基变甲氧基检测标准

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

Determination of migration of 2-methoxyethylacetate,2-ethoxyethanol,2-ethoxyethyl acetate,bis(2-methoxyethyl) ether,styrene,isophorone and nitrobenzene in toys

Determination of toxic substances in workplace air-Part 97: Dipropylene glycol methyl ether and 1-methoxy-2-propanol

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

Propylene Glycol Monomethyl Ether (PGME) 1-Methoxy-2-Propanol, Specification for

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

AIR QUALITY. WORKPLACE ATMOSPHERES. DETERMINATION OF GLYCOL ETHERS (1-METHOXY-2-PROPANOL, 2-ETHOXYETHANOL) IN AIR. CHARCOAL TUBE/SOLVENT DESORPTION/GAS CHROMATOGRAPHIC METHOD.

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.