三氯乙烯_單標(biāo)_有機(jī)類(lèi)_標(biāo)準(zhǔn)物質(zhì)_萘析商城_實(shí)驗(yàn)室科技服務(wù)創(chuàng)新平臺(tái)

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三氯乙烯

BW901003

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79-01-6

500mg

秦境

98.6%

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三氯乙烯介紹：

Method of Characterisation

GC/FID

Batch Information

Water Content: <0.1% (by Karl-Fischer-Titration)

Uncertainty

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

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

Intended Use

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

Safety

Proper precautions should be observed whilehandling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements arecalibrated with weights traceable to the national standards (DKD). Thecalibration of the balances is verified daily internally and annually by anexternal7 accredited calibration service. Chromatographic methods are traceableto the International System of Units (SI).

Homogeneity

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

Storage

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

Instructions for use

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

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手機(jī)版：三氯乙烯

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1. 標(biāo)準(zhǔn)名稱(chēng)及標(biāo)準(zhǔn)號(hào)

HJ 639-2012《水質(zhì) 揮發(fā)性有機(jī)物的測(cè)定吹掃捕集/氣相色譜-質(zhì)譜法》

2. 適用范圍

適用于地表水、地下水、海水、工業(yè)廢水和生活污水中揮發(fā)性有機(jī)物（包括三氯乙烯）的測(cè)定。

3. 核心檢測(cè)方法

通過(guò)吹掃捕集技術(shù)將水樣中揮發(fā)性有機(jī)物富集至捕集管，熱脫附后進(jìn)入氣相色譜-質(zhì)譜聯(lián)用儀（GC-MS）進(jìn)行定性和定量分析。

4. 檢出限與定量限

三氯乙烯的檢出限為0.3 μg/L，定量限為1.2 μg/L。

5. 質(zhì)控樣品要求

每批次樣品需包含空白樣品（實(shí)驗(yàn)室空白、運(yùn)輸空白）、平行樣和加標(biāo)回收樣。加標(biāo)回收率應(yīng)控制在70%-130%范圍內(nèi)。

6. 關(guān)鍵實(shí)驗(yàn)步驟

1. 吹掃時(shí)間：11 min；捕集溫度：30℃；脫附溫度：225℃。
2. 氣相色譜條件：DB-624毛細(xì)管柱（60 m×0.25 mm×1.4 μm），程序升溫從40℃升至240℃。
3. 質(zhì)譜掃描模式：全掃描（Scan）或選擇離子掃描（SIM）。

7. 特別說(shuō)明

1. 三氯乙烯易揮發(fā)，樣品需冷藏避光保存并在7天內(nèi)完成分析。
2. 實(shí)驗(yàn)過(guò)程中需使用超純水和高純氮?dú)庖员苊饨徊嫖廴尽?/td>

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