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* HS-42A is a rugged headspace sampler which enables analysis of volatile compounds. 1. Reducing the cost of maintenance for injector and column. 2. Fully-automatic. 3. Easy to use. 4. Improve laboratory efficiency and productivity. 5. Steady and reliable design. * High product quality and new design provides platform and methods to various volatile compounds analysis. 1. Meet modern laboratory needs, pursuit of reliable results. 2. HS-42A fully-automatic headspace is highly qualified for new challenges in daily analysis with excellent performance. * Provides the optimum features: 1. 10ml , 20ml vials support. 2. Method to set start and end vial sequence. 3. Agitating while during vial heating. 4. Automation for continuous heating of up to 6 samples. 5. Automatic detection of vacant vials position to reduce sequence error. * Provide reliable analysis result and reproducibility. Six-port valve, sample loop, precise temperature control and whole system heating ensure the high reproducibility and reduce the residual of analysis. * Two user interface modes. 1. From 7-inch touch screen embedded with the sampler. 2. Or running headspace APP from PC Windows. * Specifications Temperature range: environ to 220℃ with increment of 1℃ Temp precision: ±0.1℃ Max vials: 42 Equilibrium vials with agitating: 6 Vial type: 10ml, 20ml or custom Repeatability: RSD ≤1.5% (alcohol and water) Injection gas pressure: 0 ~ 0.4Mpa (continuously adjustable)