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This work was supported by a grant for Cooperation in Science and Technology with Central and Eastern European Countries: "Enhanced removal and prevention of environmental pollution by attachment and immobilization of bacteria at surfaces."

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The newest results in the use of various extraction techniques and chromatographic methods such as gas-liquid and high-performance liquid chromatography used for the assessment of herbicide residues in various matrices have been compiled and critically evaluated. Practical employments in water and soil research, environmental protection, clinical and food chemistry are presented.