Analytical Methods; Aromatic Amines in Urine (1-Naphthylamine; 2-Naphthylamine; 4,4-Methylene-bis-(2-Chloroaniline); 3,3-Dichlorobenzidine); Benzene Derivatives in Urine, Suitable for Steam Distillation (Phenol; m-/p-Cresol; o-Cresol; o-Chlorophenol; o-Nitrophenol; p-Chlorophenol; Nitrobenzene; 1,2-Dinitrobenzene; 2-Chloro-5-methylphenol; 2,5-Dichlorophenol; 3,4-Dichlorophenol; 2,3-Dinitrotoluene); Beryllium in Urine; Bromide in Urine; Cadmium in Blood; Carboxyhemoglobin; Chlorobenzenes in Urine (1,2- and 1,4,-Dichlorobenzene; 1,2,4-Trichlorobenzene); Chlorophenols (Monohydroxychlorobenzenes) in Urine (2,6-; 2,3-; 3,4-Dichlorophenol; 2,4,6-; 2,4,5-; 3,4,5-Trichlorophenol; 2,3,4,6-; 2,3,4,5-Tetrachlorophenol; Pentachlorophenol); Cobalt in Urine; Lead in Blood; o-, m-, p-Methylhippuric Acids (Toluric Acids), Hippuric Acid in Urine; Nickel in Urine; Phenol in Urine; Thallium in Urine; Trichloroacetic Acid (TCA) in Urine.