NEW PRODUCTS Newsletter. The Supelco Reporter, Vol. VI, No. 6, includes articles on simulated distillation analyses of petroleum products, determination of nifedipine in blood serum, and an adsorbent tube that traps formaldehyde and acrolein in large air samples. 12 pp. Supelco 419 Sulfite. Application bulletin discusses the determination of total sulfite in foods by distillation and redox titra-
tion. Analysis time is 10 min compared with the 2-3 h required for the MonierWilliams method. Fisher Scientific 421 Data handling. Brochure highlights the OMEGA-2 analytical workstation for chromatography data handling. The workstation features multitasking software, parallel processing, batch reprocessing, and LIMS compatibility. 12 pp. Perkin-Elmer 422
Analytical Chemists/ Quality Assurance We have 2 positions open in our San Antonio, Texas site office for highly qualified individuals to help us develop and monitor quality assurance activities in a major environmental sampling and analysis program. Individuals will be responsible for developing Q A / Q C requirements and evaluating commercial testing laboratories' performance in meeting those requirements. Evaluations will be based on a review of data and documentation and on-site inspections of laboratory operations. Both positions require expertise in analytical chemistry, a working knowledge of Q A / Q C principles and practices, and hands-on experience with the instrumentation and methods used in environmental testing (e.g., A A , ICP, GC, GC/MS). Experience with ERA test methods is highly desirable. The first position requires an advanced degree in Analytical Chemistry, 10 years of analytical laboratory or quality assurance experience, and at least one year of experience in environmental laboratory supervision. The second position requires a BS in Chemistry with emphasis on analytical procedures plus at least 5 years of experience in the quantitative analysis of environmental samples under a comprehensive Q A / Q C program. Individuals must be willing to travel 10 to 12 weeks a year.
Gas standards. Brochure describes the Series 200 computerized gas standards generator, which produces precision gas standards for single- or multipoint calibration of gas chromatographs, mass spectrometers, plant monitors, and other analytical instruments. 4 pp. Environics 423
Catalogs Biochromatography. Catalog features reversed-phase, ion-exchange, size-exclusion, affinity, and hydrophobic interaction columns and packings. Also listed are fittings, valves, pumps, filters, and tubing. 48 pp. Alltech Associates 425 LC. Catalog describes stainless steel and titanium components and accessories for HPLC. Filters and valves, including prime purge and 2- and 3-way valves, also are listed. Scientific Systems 426 Labware. Catalog features disposable products for liquid handling, including micro test tubes; pipets and tips; standard and semimicro cuvettes; culture tubes; and sample, scintillation, and storage vials. 28 pp. Bio-Rad 427 Chemicals. Catalog contains inorganic, organic, and organometallic compounds in high-purity, reagent, and technical grades. Included are germanium compounds, purified carbamates, silanes, and industrial intermediates. Hach Synthesis 428
For consideration, please submit your resume to J . A . Goudarzi, The MITRE Corporation, 7 5 2 5 Colshire Drive, McLean, VA 2 2 1 0 2 . U.S. Citizenship required. An Equal Opportunity/ Affirmative Action Employer.
MITRE 352 A · ANALYTICAL CHEMISTRY, VOL. 60, NO. 5, MARCH 1, 1988
Ion transfer optics and a crossbeam ion source are combined in the PPM 400 quadrupole mass spectrometer. The system can identify positive, negative, and neutral species in a plasma. An orifice diameter of 100 mm reduces pressure by ~10~ 4 . Balzers 402
