常见问题
液相进样针检测需要多长时间?
通常7-15个工作日。具体周期视检测项目数量及测试方法的复杂程度而定,如涉及疲劳寿命测试可能需要更长时间。
液相进样针检测费用大概多少?
根据检测项目数量确定。基础的外观与尺寸检测费用较低,若涉及材料成分分析、耐压性能或交叉污染率测试,费用将相应增加。
液相进样针检测报告有什么用途?
可用于质量评估、项目验收。中析研究所检测中心旗下实验室旗下实验室拥有CMA、CNAS、ISO等检验检测资质,出具的测试报告可用于产品研发验证、进料检验及招投标技术文件证明。
液相进样针死体积检测为何重要?
死体积直接影响样品残留量,若死体积过大,会导致前次高浓度样品残留在针管内,造成后续低浓度样品分析出现假阳性结果或色谱峰拖尾。
液相进样针检测项目
- DB21/T 4134-2025 水质 喹诺酮类、磺胺类、β-内酰胺类和氯霉素类抗生素的测定 直接进样/液相色谱-质谱法
- SN/T 3010-2011 涂料中汞含量的测定 固液进样直接测汞法
- NB/SH/T 0707-2016 石蜡中苯和甲苯含量的测定 顶空进样气相色谱法
- SH/T 0707-2016 石蜡中苯和甲苯含量的测定 顶空进样气相色谱法
- SH/T 0707-2001 石蜡中苯和甲苯含量测定法(顶空进样气相色谱法)
- GB/T 32686-2016 光敏材料用多官能团丙烯酸酯单体中有机溶剂的测定 顶空进样毛细管气相色谱法
- T/CAQI 380-2024 水中144种药品和个人护理品的测定 大体积直接进样/液相色谱-三重四极杆质谱法
- SH/T 1760-2007 合成橡胶胶乳中残留单体和其他有机成分的测定 毛细管柱气相色谱 直接液体进样法
- DIN EN 16423:2026-09 Liquefied petroleum gases - Determination of dissolved residue - Gas chromatographic method using liquid, on-column injection; German and English version prEN 16423:2026
- DIN EN ISO 17895:2024-11 Paints and varnishes - Determination of volatile organic compound (VOC) - Gas-chromatographic method with headspace injection for VOC determination (ISO 17895:2024)
- DIN EN ISO 21676:2022-01 Water quality - Determination of the dissolved fraction of selected active pharmaceutical ingredients, transformation products and other organic substances in water and treated waste water - Method using high performance liquid chromatography and mass spectrometric detection (HPLC-MS/MS or -HRMS) after direct injection (ISO 21676:2018)
- ASTM D3695-95(2021)e1 Standard Test Method for Volatile Alcohols in Water by Direct Aqueous-Injection Gas Chromatography
- ASTM E806-21 Standard Test Method for Carbon Tetrachloride and Chloroform in Liquid Chlorine by Direct Injection (Gas Chromatographic Procedure)
- ISO 17895:2024 Paints and varnishes — Determination of volatile organic compound (VOC) — Gas-chromatographic method with headspace injection for VOC determination
- AWWA QTC97063 Cost Effective Analysis of Semi-Volatile Organic Compounds in Water by Micro-Solid Phase Extraction With Large Volume Injection GC/MS
- DIN ISO 13741-1:2024-12 Plastics/rubber - Determination of residual monomers and other organic components by capillary-column gas chromatography - Part 1: Direct liquid injection method (ISO 13741-1:2023)
- EN ISO 17895:2024 Paints and varnishes - Determination of volatile organic compound (VOC) - Gas-chromatographic method with headspace injection for VOC determination (ISO 17895:2024)
- DIN EN ISO 21676:2021-06 Water quality - Determination of the dissolved fraction of selected active pharmaceutical ingredients, transformation products and other organic substances in water and treated waste water - Method using high performance liquid chromatography and mass spectrometric detection (HPLC-MS/MS or -HRMS) after direct injection (ISO 21676:2018); German and English version prEN ISO 21676:2021
- KS M ISO 13741-1-2006(2016) 플라스틱/고무-중합체 분산물과고무 라텍스(천연 및 합성)-모세관 칼럼가스 크로마토그래피에 의한 잔류 단량체 및기타 유기 조성물의 측정-제1부:액체 직접 주입 방법
检测信息
液相进样针是一种用于液相色谱仪中精准吸取和转移微量样品溶液的精密器械,广泛应用于制药、环境监测、食品安全等领域的化学分析。
检测目的在于评估进样针的密封性、残留量、针尖强度及进样重复性,涉及力学性能测试、表面粗糙度分析及微量体积校准等技术手段。
检测流程涵盖外观检查、尺寸测量、密封性测试、死体积测定及重复性验证,核心参数包括针管内径偏差、针芯配合间隙及耐腐蚀性能。
总结
液相进样针检测涵盖尺寸公差、密封性能、死体积残留及进样重复性等核心参数评估。中析研究所检测中心旗下实验室旗下实验室拥有CMA、CNAS、ISO等检验检测资质。检测报告可用于产品质量控制及验收,常规检测周期为7-15个工作日。





