{"first_sentence": {"type": "/type/text", "value": "Gas chromatography is a powerful analytical tool for the separation of complex mixtures of volatile compounds."}, "physical_format": "Hardcover", "weight": "1.4 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["CRC-Press"], "number_of_pages": 256, "isbn_13": ["9780849330742"], "id": 11181813, "edition_name": "1 edition", "isbn_10": ["0849330742"], "publish_date": "December 18, 1993", "key": "/b/OL8259957M", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "title": "Handbook of Chromatography Polymers", "contributions": ["Charles G. Smith (Editor)", "Walter C. Buzanowski (Editor)", "Jeffrey D. Graham (Editor)", "Ziad Iskandarani (Editor)"], "subjects": ["Chromatography", "Plastics & polymers technology", "Polymer Chemistry", "Reference works", "Earth Sciences - General", "Chromatographic Analysis", "Science", "Science/Mathematics", "Chemistry - Analytic", "Chemistry - Organic", "Science / Chemistry / Analytic"], "physical_dimensions": "10.5 x 7.2 x 0.8 inches", "revision": 1}