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  • 吸入制剂试验
    • 递送剂量均一性(DDU)
      • 定量吸入气雾剂(MDI)递送剂量均一性测试(DDU)
      • 干粉吸入剂(DPI)的DDU递送剂量均一性测试
      • 雾化吸入剂的DDU递送剂量均一性测试
      • 混悬液水雾喷雾剂吸入制剂(ADI)的DDU递送剂量均一性测试
      • 鼻用产品的DDU递送剂量均一性测试
    • 配件
      • 呼吸模拟器
      • 流量控制器
      • 流量计
      • 真空泵
      • 环境控制
      • NGI散热器
      • 吸入器测试工作站 (ITW)
      • 玻璃膨胀室
      • 喉舌和鼻托适配器
    • 特殊应用
      • 冲击器缩写 (AIM)
      • 美国药典专著(仿制药开发)
    • 空气动力学粒径分布(APSD)
      • 定量吸入气雾剂(MDI)空气动力学粒径分布(APSD)
      • 干粉吸入剂(DPI)的APSD空气动力学粒径分布
      • 雾化吸入剂的空气动力学粒径分布
      • 水雾喷雾吸入制剂(ADI)的APSD
      • 鼻用产品的APSD
    • 改善IVIVC
      • 用于DDU和APSD的IVIVC测试系统
      • 吸入药物溶出度
      • 面罩测试
      • 形态学
      • 冷媒效应
    • 半自动化
      • 半自动 – MDI振摇与喷射系统
      • 加快递送剂量均一性测试的省工工具
      • 加快空气动力学粒径分布测试的省工工具
    • APSD数据分析软件
      • Inhalytix®
  • 药物测试
    • 片剂崩解时限测试
      • DTGi系列
    • 片剂硬度测试(断裂力)
      • 片剂硬度计:TBF 100i
      • 片剂硬度计:TH3
    • 栓剂测试
      • 栓剂融变时限试验:SDT 1000
      • 阴道片融变时限测试仪:VTT
    • 片剂溶出度测试
      • DISi系列
    • 粉末测试
      • 振实密度:JVi系列
      • 堆密度:斯科特体积计
      • 流动性:BEP2
    • 片剂厚度测试
      • 547型片剂厚度仪
      • 700型片剂厚度仪
      • 500型数字卡尺
    • 片剂脆度测试
      • Friabimat:包衣片剂
      • FRVi系列:未包衣片剂
    • 半固体测试
      • 立式扩散池测试仪:HDT 1000
      • 立式扩散池测试仪:HDT 1
  • 洗涤剂试验
    • 清洁剂测试仪
      • 清洁剂测试仪: TRG 800i
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Go back to News & Events

Copley introduces new tool to support evolving inhaler testing practice

02 November 2022; Nottingham, UK: The Volume and Resistance Compensator (VRC) is a valuable new tool from Copley Scientific, the world’s leading supplier of inhaler test equipment, for those pioneering the integration of abbreviated impactor measurements (AIM) into established workflows to streamline inhaler testing. For all orally inhaled products (OIPs), full resolution cascade impaction is a compendial method used to measure aerodynamic particle size distribution (APSD). AIM, in combination with Efficient Data Analysis (EDA), has potential to reduce the time and cost of such measurements, but comparability with full resolution measurements is important and not yet assured. The new VRC directly addresses this issue and is especially relevant for the testing of dry powder inhalers (DPIs).

“Copley is committed to developing products in lockstep with the evolving requirements of the inhalation community to provide well-engineered solutions that support progress,’ said Mr Mark Copley, CEO, Copley. “AIM has merit as a route to improved analytical productivity but presents challenges too. The VRC can help analysts to optimise the use of AIM, and EDA, by improving equivalence between test conditions. It augments our existing range of AIM instrumentation which comprehensively addresses the needs of those working in this area.”

The different geometries of AIM apparatus, relative to analogous full resolution cascade impactors, give rise to differences in volume and flow resistance. The result is poor parity between flow rate rise time profiles – the rate at which air flow accelerates from zero to the test value. This is a recognised problem, particularly for passive DPIs, since with these devices start-up kinetics drive dose dispersion, aerosolisation, and delivery. The VRC:

  • provides a robust easy-to-use tool that allows users to refine flow rate rise time profiles for AIM apparatus to ensure comparable conditions for aerosol generation
  • allows volume and flow resistance to be independently varied
  • is suitable for all types of AIM apparatus with successful matching demonstrated for both the Next Generation Impactor (NGI) and Andersen Cascade Impactor (ACI) and their AIM counterparts.

To find out more about the VRC and its ability to support the wider uptake of AIM and EDA click Here.

CAPTION: The new Volume and Resistance Compensator VRC – improving compatibility between abbreviated and full resolution cascade impactor data.

ENDS

About Copley Scientific
Copley Scientific is widely recognised as the world’s leading manufacturer and supplier of inhaled product testing equipment and is a major provider of testing systems for other pharmaceutical dosage forms. The company also supplies equipment for detergent testing.

Copley’s pharmaceutical product range includes testing equipment for all types of orally inhaled and nasal drug products – metered-dose inhalers, dry powder inhalers, nebulisers and nasal products – with a particular focus on solutions for delivered dose uniformity and aerodynamic particle size distribution measurement. It also includes testers for tablets (dissolution, disintegration, friability and hardness) capsules, powders, suppositories, semisolids and transdermals.

Used from R&D through to QC, this extensive range of equipment is supported by a full validation and aftersales service. Copley has offices in the UK and Switzerland and works in partnership with specialist distributors, extending localised support across the world. This network provides expert help and training to every customer, directly enhancing the application of all Copley products. www.copleyscientific.com.

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