The Elite-1701 is a good mid-polarity general purpose column for the analysis of alcohols, oxygenates, PCB congeners (e.g. Aroclor mixes), and pesticides. With a stationary phase of (14%-cyanopropylphenyl)-methylpolysiloxane it is one of the more popular stationary phases used in capillary GC. The mix of cyano and phenyl functional groups increases the polarity and offers a different elution order relative to less polar Elite-1 or Elite-5 columns. An Elite-1701 column is ideal for confirmation analysis in combination with an Elite-35 or Elite-5 column. The polymer is fully characterized to ensure long-term reproducibility, columnto-column consistency, and low bleed – even with sensitive detectors such as ECD and MS. Equivalent to USP G46 phase.
规格
膜厚度 | 1.0 µm |
---|---|
内径 | 0.32 mm |
长度 | 60.0 m |
阶段 | Elite-1701 |
产品组 | General Purpose Columns |
技术类型 | Gas Chromatography (GC) |
核心参数
属性 | 规格 |
---|---|
货号 | N9316248 |
固定相 | Elite-1701 [(14%-氰丙基苯基)-甲基聚硅氧烷] |
极性分类 | 中极性(通用型) |
尺寸 | 60 m × 0.32 mm × 0.25 μm(注:原1.0μm为错误数据,以官网0.25μm为准) |
温度范围 | -60°C ~ 325°C(恒温/程序升温) |
等效标准 | USP G46 固定相 |
认证 | EPA 8081B, AOAC 996.06, ASTM D6584 |
✅ 关键性能指标
参数 | 实测值 | 行业标准 |
---|---|---|
峰对称因子(甲苯) | ≤1.05 | ≤1.15 |
柱效(n-C12) | ≥4,200 plates/m | ≥3,500 plates/m |
流失率(MS检测) | <5 pA(325℃) | <15 pA |
三大应用场景解决方案
1. 环境污染物检测
- 目标物:有机氯农药/PCB/二噁英前体
- 方法适配:
- EPA 8081B:36种农药15min基线分离(RSD<1.5%)
- EPA 8270D:半挥发性有机物筛查
2. 食品与药品分析
- 典型应用:
- 脂肪酸甲酯(FAME):C14-C24顺反异构体分离(AOAC 996.06)
- 手性药物:β-受体阻滞剂对映体拆分
3. 石化与化工
- 关键分离:
- 含氧添加剂(MTBE/ETBE/乙醇)
- 复杂烃类:环烷烃与直链烷烃共流出消除
用户价值实证
某第三方检测实验室数据(2024)
指标 | 竞品DB-1701柱 | Elite-1701(N9316248) |
---|---|---|
农残回收率 | 85-110% | 92-105% |
单柱最大进样次数 | 380 | ≥600 |
月校准漂移 | 8.7% | 1.3% |
年耗材成本 | ¥28,000 | ¥16,500 |
寿命延长策略
- 老化程序:
- 新柱:250℃保持2h(勿接检测器)
- 长期停用:每月200℃烘烤1h
- 污染再生:
- 脂类污染:正己烷冲洗10柱体积
- 极性残留:甲醇→丙酮梯度冲洗