CAJ | 학술논문

便携式拉曼光谱仪在现场快速分析中往往由于现场样品比较复杂，需要处理后才能采用光谱仪进行测定，因此一定程度上限制它的使用。常规实验室前处理虽然行之有效，但是过程繁琐费时，不适合现场使用。本课题组开发了一种便携式快速PERS前处理仪器，具有便携、功耗低、操作简便，提取时间短以及重复性好等特点，能满足现场快速检测的前处理需求。该仪器由超声波提取单元、加热抽气挥发单元、尾气净化与吸收单元以及控制系统四个功能模块组成，并且设有L ED控制面板和报警装置。整个工作流程主要包括超声提取、液液萃取和溶剂加热抽气挥发三个环节。以三种实际样品（辣椒粉、辣椒油、豆瓣酱）中的违禁添加剂罗丹明B检测为例，结果表明：与常规实验室前处理方法相比，两种前处理方法对于PERS谱图影响不大，但是检测时间缩短一半。另外，重复性实验检测结果的相对标准偏差（relative standard deviation ， RSD ）小于±5％。
편휴식랍만광보의재현장쾌속분석중왕왕유우현장양품비교복잡，수요처리후재능채용광보의진행측정，인차일정정도상한제타적사용。상규실험실전처리수연행지유효，단시과정번쇄비시，불괄합현장사용。본과제조개발료일충편휴식쾌속PERS전처리의기，구유편휴、공모저、조작간편，제취시간단이급중복성호등특점，능만족현장쾌속검측적전처리수구。해의기유초성파제취단원、가열추기휘발단원、미기정화여흡수단원이급공제계통사개공능모괴조성，병차설유L ED공제면판화보경장치。정개공작류정주요포괄초성제취、액액췌취화용제가열추기휘발삼개배절。이삼충실제양품（랄초분、랄초유、두판장）중적위금첨가제라단명B검측위례，결과표명：여상규실험실전처리방법상비，량충전처리방법대우PERS보도영향불대，단시검측시간축단일반。령외，중복성실험검측결과적상대표준편차（relative standard deviation ， RSD ）소우±5％。
The present paper developed a portable and fast sample pretreatment apparatus .It has many virtues like being porta‐ble ,low power consumption and convenient operation ,short extraction time and sound repeatability .Therefore ,it can meet the requirements of on‐site rapid detection pretreatment .The apparatus consists of four functional modules :ultrasonic extraction unit ,heating unit ,exhaust gas evaporation and absorption unit and control system .In addition ,LED control panel and alarm de‐vice were designed .The whole treatment process needs three steps :ultrasonic extraction ,liquid‐liquid extraction and solvent evaporation by heating and pumping .For test of this apparatus performance ,three real samples (pepper powder ,pepper oil , bean sauce) containing banned additive Rhodamine B were taken as experiment objects .Compared with conventional laboratory pretreatment method ,the PERS spectra achieved by two methods were little changed ,but the experiment time was halved .In addition ,the test results showed relative standard deviation less than ± 5% .