中华劳动卫生职业病杂志
中華勞動衛生職業病雜誌
중화노동위생직업병잡지
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
2014年
10期
772-773
,共2页
空气,工作场所%甲基丙基酮%色谱法,气相
空氣,工作場所%甲基丙基酮%色譜法,氣相
공기,공작장소%갑기병기동%색보법,기상
Air of workplace%Methyl propyl ketone%Gas chromatography
目的 建立工作场所空气中甲基丙基酮测定的气相色谱法方法.方法 工作场所空气中甲基丙基酮用活性炭采样管采集,二硫化碳解吸后进样,经毛细管色谱柱分离,氢焰离子化检测器检测,以保留时间定性,峰面积定量.结果 甲基丙基酮在202.5～4 860.0μg/ml范围内呈线性关系.相关系数为0.999 98;方法的检出限为1.5 μg/ml;定量下限为5.0 μg/ml,在采样体积为1.5 L,解吸液体积为1.0 ml的条件下,方法的最低检出浓度为1.0 mg/m3;不同浓度的甲基丙基酮相对标准偏差为1.42％～1.65％;加标回收率为94.9％～97.9％.结论 该方法灵敏度高,精密度好,准确度好,适用于工作场所空气中甲基丙基酮的测定.
目的 建立工作場所空氣中甲基丙基酮測定的氣相色譜法方法.方法 工作場所空氣中甲基丙基酮用活性炭採樣管採集,二硫化碳解吸後進樣,經毛細管色譜柱分離,氫燄離子化檢測器檢測,以保留時間定性,峰麵積定量.結果 甲基丙基酮在202.5～4 860.0μg/ml範圍內呈線性關繫.相關繫數為0.999 98;方法的檢齣限為1.5 μg/ml;定量下限為5.0 μg/ml,在採樣體積為1.5 L,解吸液體積為1.0 ml的條件下,方法的最低檢齣濃度為1.0 mg/m3;不同濃度的甲基丙基酮相對標準偏差為1.42％～1.65％;加標迴收率為94.9％～97.9％.結論 該方法靈敏度高,精密度好,準確度好,適用于工作場所空氣中甲基丙基酮的測定.
목적 건립공작장소공기중갑기병기동측정적기상색보법방법.방법 공작장소공기중갑기병기동용활성탄채양관채집,이류화탄해흡후진양,경모세관색보주분리,경염리자화검측기검측,이보류시간정성,봉면적정량.결과 갑기병기동재202.5～4 860.0μg/ml범위내정선성관계.상관계수위0.999 98;방법적검출한위1.5 μg/ml;정량하한위5.0 μg/ml,재채양체적위1.5 L,해흡액체적위1.0 ml적조건하,방법적최저검출농도위1.0 mg/m3;불동농도적갑기병기동상대표준편차위1.42％～1.65％;가표회수솔위94.9％～97.9％.결론 해방법령민도고,정밀도호,준학도호,괄용우공작장소공기중갑기병기동적측정.
Objective To establish a gas chromatography method for determination of methyl propyl ketone in the air of workplace.Methods Methyl propyl ketone in the air of workplace was collected with activated carbon tubes and desorbed with carbon disulfide before sample loading.The target toxicant was separated with the capillary column and detected with a hydrogen flame ionization detector,identified by retention time,and quantified by peak area.Results The linear range of methyl propyl ketone in the air of workplace was 202.5～4 860.0 μg/ml,with a correlation coefficient of 0.999 98.The limit of detection was 1.5 μg/ml.The lower limit of quantification was 5.0 μg/ml.The minimum detectable concentration was 1.0 mg/m3 under 1.5 L sampling volume and 1.0 ml desorption solution volume.The relative standard deviation of different methyl propyl ketone concentrations was 1.42％～1.65％,and the recovery rate was 94.9％～97.9％.Conclusion This method has high sensitivity,precision,and accuracy,and it is applicable for determination of methyl propyl ketone in the air of workplace.
