菲_單標(biāo)_有機類_標(biāo)準(zhǔn)物質(zhì)_萘析商城

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菲

BW901094

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85-01-8

100mg

秦境

97.6%

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菲介紹：

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	Phenanthrene
Product Code	BW901094
Lot Number	23081502
CAS No.	85-01-8
Mol. Formula	C₁₄H₁₀
Mol. Weight	178.23
Certified on	4 Aug 2023
Expiry Date	4 Aug 2028
Storage Temp	20°C ± 4°C
Specification	100mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

97.6%

1.0%

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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本公司銷售的所有產(chǎn)品僅供實驗科研使用，不用于人體及臨床診斷。

標(biāo)準(zhǔn)名稱及標(biāo)準(zhǔn)號

HJ 784-2016

土壤和沉積物多環(huán)芳烴的測定高效液相色譜法

適用范圍

本標(biāo)準(zhǔn)適用于土壤和沉積物中菲（CAS:85-01-8）及其他15種多環(huán)芳烴的定量分析，檢測基質(zhì)包括干重≤40%的土壤及河流、湖泊沉積物。

核心檢測方法

樣品經(jīng)索氏提取或加壓流體萃取后，通過硅膠柱凈化，采用高效液相色譜-熒光檢測器/紫外檢測器分離分析，以保留時間定性、外標(biāo)法定量。

檢出限與定量限

菲的方法檢出限為0.02 mg/kg（干基），定量限為0.08 mg/kg（干基），當(dāng)取樣量為10.0 g時適用。

質(zhì)控樣品要求

每批次樣品需包含至少1個實驗室空白、1個平行樣及1個加標(biāo)樣品，加標(biāo)回收率應(yīng)控制在70%-130%，相對偏差≤25%。

關(guān)鍵實驗步驟

1. 樣品研磨過篩（2 mm篩孔）；
2. 加入替代物（如氘代菲）進行提取；
3. 凈化后氮吹濃縮至0.5 mL；
4. 色譜條件：C18色譜柱，流動相為乙腈-水梯度洗脫，熒光檢測波長λ_ex/λ_em=260/340 nm。

特別說明

菲易受光解影響，樣品前處理需避光操作。若存在異構(gòu)體干擾，需優(yōu)化色譜分離條件或采用質(zhì)譜確認。

以上信息僅供參考，請以相應(yīng)標(biāo)準(zhǔn)的原文為準(zhǔn)！