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4-己基苯酚_2446-69-7,4-己基苯酚
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4-己基苯酚

BW901061 {{goodObj.price > 0 ? '¥' + goodObj.price : '咨询'}} ¥{{goodObj.sell_price || 0}} 咨询 2446-69-7 100mg {{goodObj.date}} 秦境 {{item.norm}} 99.8% {{inventory}}
4-己基苯酚介绍:

Reference Material

This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO9001.

Product Name

4-n-Hexylphenol

Product Code

BW901061

Lot Number

23061505

CAS No.

2446-69-7

Mol. Formula

C12H18O

Mol. Weight

178.00

Certified on

2 Jun 2023

Expiry Date

1 Jun 2025

Storage Temp

20°C ± 4°C

Specification

100 mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.8%

0.5%

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the terms and conditions of purchase.

Intended Use

This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

Safety

Proper precautions should be observed while handling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration of the balances is verified daily internally and annually by an external7 accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Storage

The RM should be stored in the original sealed container at the indicated temperature.

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space.


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标准名称及标准号
GB/T 23213-2008
食品接触材料 塑料中邻苯二甲酸酯类增塑剂的测定 气相色谱-质谱法
适用范围
本标准适用于食品接触塑料材料中邻苯二甲酸酯类增塑剂(包括4-己基苯酚等有机化合物)的定性与定量分析。
核心检测方法
采用气相色谱-质谱联用技术(GC-MS),通过溶剂萃取法提取样品中的目标物,经净化后上机检测,通过保留时间和特征离子定性,外标法定量。
检出限与定量限
该方法对4-己基苯酚的检出限为0.01 mg/kg,定量限为0.05 mg/kg。
质控样品要求
实验需包含空白样品、加标回收样品和平行样品,加标浓度应覆盖待测物实际浓度范围,回收率需控制在70%-120%。
关键实验步骤
1. 样品粉碎后用正己烷超声萃取;
2. 萃取液经氮吹浓缩后过0.22 μm滤膜;
3. GC-MS条件:DB-5MS色谱柱(30 m × 0.25 mm × 0.25 μm),程序升温,EI离子源,SIM模式检测。
特别说明
实验过程需避免塑料器皿的污染,样品应冷藏保存且尽快检测;若存在干扰峰,可通过调整色谱条件或净化步骤优化分离效果。

以上信息仅供参考,请以相应标准的原文为准!