惡臭硫化物的色譜測(cè)定是一個(gè)技術(shù)要求高、需要高度關(guān)注細(xì)節(jié)的分析領(lǐng)域。成功的關(guān)鍵在于：
選擇合適的色譜柱和檢測(cè)器： FPD/PFPD/SCD是氣體樣品的主流；極性柱+SCD/MSD常用于液體或衍生化樣品。
使用高度惰性的采樣和前處理系統(tǒng)： 吸附管采樣-熱脫附（氣體）、吹掃捕集（水樣）是最常用且靈敏的富集方法。所有接觸面必須惰性化。
嚴(yán)格控制樣品保存和操作條件： 避免吸附、氧化、光解、污染。
建立準(zhǔn)確可靠的校準(zhǔn)方法： 推薦使用外標(biāo)法或內(nèi)標(biāo)法，標(biāo)準(zhǔn)曲線需覆蓋預(yù)期濃度范圍，并包含前處理步驟。
遵循相關(guān)標(biāo)準(zhǔn)方法并嚴(yán)格進(jìn)行質(zhì)量控制： 包括空白實(shí)驗(yàn)、平行樣、加標(biāo)回收率等。
通過(guò)精心設(shè)計(jì)和嚴(yán)格控制整個(gè)分析流程，氣相色譜法能夠準(zhǔn)確、靈敏地測(cè)定環(huán)境介質(zhì)和工業(yè)過(guò)程中的惡臭硫化物，為污染控制、工藝優(yōu)化和質(zhì)量監(jiān)控提供關(guān)鍵數(shù)據(jù)。
?
?
浩瀚色譜(山東)應(yīng)用技術(shù)開發(fā)有限公司，采用HH-S3硫?qū)Ｓ弥鹧婀舛葯z測(cè)器氣相色譜法測(cè)定環(huán)境空氣中硫化氫、甲硫醇、甲硫醚、二硫化碳、二甲二硫、噻吩等6種硫化物,討論了采樣容器材質(zhì)的影響。方法線性良好,6種硫化物的檢出限為1.1μg/m3～5.1μg/m3,混合標(biāo)準(zhǔn)氣平行測(cè)定的RSD≤8.5%,
?
名稱：硫化物測(cè)定專用柱
型號(hào)：HH一S3
規(guī)格：3m*3mm
材質(zhì)：聚四氟乙烯
zui高使用溫度：120°C
應(yīng)用：GB/T 14678-1993空氣質(zhì)量 硫化氫、甲硫醇、甲硫醚和二甲二硫的測(cè)定 氣相色譜法
?
適用于：
安捷倫490在線/便攜，4890,5890,6890,7820,7890,8860,8890
島津GC-14C，GC-2010，GC-2014，GC-2030
賽默飛1310,1300,1610,1600
瓦里安3800系列
布魯克PE580,590,680,690
磐諾A90，福立GC9790，華愛，天瑞，天美，GC7900，川儀，北分瑞利，東西電子，魯南瑞虹，捷島/科曉
?
?
The chromatographic determination of odorous sulfides is an analytical field that requires high technical requirements and attention to detail. The key to success lies in:
Choose appropriate chromatographic columns and detectors: FPD/PFPD/SCD are the mainstream for gas samples; Polar columns+SCD/MSD are commonly used for liquid or derivatized samples.
The use of highly inert sampling and pretreatment systems: adsorption tube sampling thermal desorption (gas), blowdown capture (water sample) are the most commonly used and sensitive enrichment methods. All contact surfaces must be inert.
Strictly control sample storage and operating conditions: avoid adsorption, oxidation, photolysis, and contamination.
Establish accurate and reliable calibration methods: It is recommended to use external or internal standard methods, and the standard curve should cover the expected concentration range and include pre-processing steps.
Follow relevant standard methods and strictly control quality, including blank experiments, parallel samples, spiked recovery rates, etc.
By carefully designing and strictly controlling the entire analysis process, gas chromatography can accurately and sensitively determine odorous sulfides in environmental media and industrial processes, providing key data for pollution control, process optimization, and quality monitoring.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used HH-S3 sulfur specific column flame photometric detector gas chromatography to determine six types of sulfides in ambient air, including hydrogen sulfide, methyl mercaptan, methyl sulfide, carbon disulfide, dimethyl disulfide, thiophene, etc. The influence of sampling container material was discussed. The method has good linearity, with detection limits of 1.1 μ g/m3 to 5.1 μ g/m3 for 6 sulfides, and RSD ≤ 8.5% for parallel determination of mixed standard gas,
Name: Special Column for Sulfide Determination
Model: HH-S3
Specification: 3m * 3mm
Material: Polytetrafluoroethylene
Maximum operating temperature: 120 ° C
Application: GB/T 14678-1993 Air quality - Determination of hydrogen sulfide, methyl mercaptan, methyl sulfide and dimethyl disulfide - Gas chromatographic method
Suitable for:
Agilent 490 online/portable, 48905890689088608890
Shimadzu GC-14C, GC-2010, GC-2014, GC-2030
Thermo Fisher Scientific 1310130016101600
Varian 3800 Series
Brooke PE580590680690
Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900， Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao
滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司
電話：0632-5667636
傳真：0632-5667636
手機(jī)：15562228838,13963221227
地址：山東滕州市平行路（商務(wù)部和技術(shù)部）
郵箱：wangxiaoying9@126.com
QQ:1404939462
聯(lián)系人：王經(jīng)理
網(wǎng)址：m.gwwstcpf.cn