WO2019200947A1 - 基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库及检测方法 - Google Patents
基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库及检测方法 Download PDFInfo
- Publication number
- WO2019200947A1 WO2019200947A1 PCT/CN2018/121001 CN2018121001W WO2019200947A1 WO 2019200947 A1 WO2019200947 A1 WO 2019200947A1 CN 2018121001 W CN2018121001 W CN 2018121001W WO 2019200947 A1 WO2019200947 A1 WO 2019200947A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pesticide
- orbitrap
- ion
- mass
- compound
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Definitions
- the invention designs an electronic identity database and a detection method for pesticide compounds in edible agricultural products based on LC ⁇ Q ⁇ Orbitrap, and the invention can realize non-target, multi-index and rapid screening for more than 500 pesticide residues in various edible agricultural products.
- the analysis of pesticide residues is mainly based on gas chromatography, liquid chromatography, gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry.
- These detection techniques first need to be qualitatively compared to pesticide standards. For example, the detection of 100 pesticides requires the preparation of the corresponding 100 pesticide standard controls, and these 100 pesticides will be missed. In the actual work of pesticide residue laboratories, most laboratories do not stock hundreds of pesticide standards. The reason is that pesticide standards are not only expensive, but also valid for only 2 or 3 years, requiring repeated investment. There are only a few dozen standard pesticide standards in the laboratory, and the number of pesticides that are routinely monitored is limited to these dozens, which leads to food safety monitoring loopholes.
- the invention solves the problem that the simultaneous detection of multiple pesticides can not be realized in the current pesticide residue screening technology method, and develops a high-throughput high-resolution liquid chromatography-quadrupole-electrostatic field orbitrap mass spectrometry (LC- Q-Orbitrap) New technology for the electronic identity database and detection method of pesticides for edible agricultural products, which enables rapid screening and detection of more than 500 pesticide residues in agricultural products without the need for standard product comparison, meeting the high pesticide residues in current agricultural products. Urgent need for rapid flux detection.
- LC- Q-Orbitrap liquid chromatography-quadrupole-electrostatic field orbitrap mass spectrometry
- An electronic identity database of a pesticide compound based on LC-Q-Orbitrap comprising a plurality of pesticide compound electronic identification cards, including pesticide compound information, retention time, additive ion information, fragment ion information, collision energy, and Optimal full scan mass spectrum;
- the pesticide compound information includes a compound name, a compound molecular formula
- the retention time of the pesticide compound under specified chromatographic mass spectrometry conditions was measured by a LC-Q-Orbitrap instrument in a Full MS/ddMS 2 mode to determine the ionized form of the pesticide compound ESI source (+H, +NH 4 , + Na) and the molecular formula of the compound, obtaining the exact mass of the ion of the pesticide compound;
- the full-scan mass spectrum of the fragment ions is collected under multiple different collision energies, and the optimal full-scan mass spectrum rich in ion information is selected.
- the optimal full-scan mass spectrum means that the additive ion abundance ratio is 10%-20 %, selecting 3-5 fragment ions having the largest ion abundance ratio in the optimal full scan mass spectrum, and recording the collision energy value;
- the fragment ion information is a theoretical accurate mass and abundance ratio of fragment ions under the optimal full scan mass spectrum
- the abundance ratio refers to the signal intensity ratio of the ion to the strongest fragment ion of the signal in the mass spectrum.
- the database is sorted by retention time in the electronic ID card.
- the electronic identity further comprises a smart matching model database, adding intelligence matching model matching value P m in the electronic ID card, which is a calculation model:
- M b is the theoretical exact mass of the additive ion
- M i is the exact mass of the i-th fragment ion
- W i is the weight of the i-th fragment ion
- I i is the ion abundance ratio of the i-th fragment ion
- the order of the fragment ions is from the largest to the smallest of the ion abundance ratio
- W b is the weight of the additive ions
- W q is the integrated weight of the fragment ions
- n is the number of fragment ions.
- X i is the mass of the i-th fragment ion element
- n is the number of elements of the fragment ion
- y i is the number of elements corresponding to the i-th fragment ion.
- X 1 , X 2 ... X n is the mass of the fragment ion element
- y' 1 , y′ 2 , ... y′ n are the number of corresponding elements of the preferred fragment ion element composition.
- chromatographic mass spectrometry conditions are:
- Chromatographic conditions separation by liquid chromatography system with reversed-phase chromatography column (Accucore aQ 150 ⁇ 2.1 mm, 2.6 ⁇ m); mobile phase A was 5 mM ammonium acetate-0.1% formic acid-water; mobile phase B was 0.1% Formic acid-methanol; gradient elution procedure, 0 min: 1% B, 3 min: 30% B, 6 min: 40% B, 9 min: 40% B, 15 min: 60% B, 19 min: 90% B, 23 min: 90% B , 23.01min: 1% B, after running for 4 min; flow rate is 0.4 mL / min; column temperature: 40 ° C; injection amount: 5 ⁇ L;
- Mass spectrometry conditions Scan mode: Full MS-ddMS 2 ; Full MS scan range: 70-1050 m/z; Resolution: 70,000, Full MS; 17,500, MS/MS; AGC: Full MS, 1e6; MS/MS, 1e5; IT: Full MS, 200ms; MS/MS, 60ms; Loop count: 1; MSX count: 1; Isolation width: 2.0m/z; NCE (Stepped NCE): 40 (50%); Under fill ratio: 1%; Apex trigger: 2-6s; Dynamic Exclusion: 5s; collection and processing of mass spectrometry results by TraceFinder software.
- a method for detecting pesticide compounds in edible agricultural products based on LC-Q-Orbitrap comprising:
- the sample to be tested is acidified and acetonitrile is homogenized and extracted, dehydrated, centrifuged, concentrated, and then purified by solid phase extraction column (SPE), and the residual pesticide is eluted by acetonitrile + toluene solution, and concentrated and filtered to prepare a sample solution;
- SPE solid phase extraction column
- ⁇ T is the absolute value of the difference between the retention time of the unknown and the retention time of any pesticide compound in the database
- P c is the intelligent matching value of the unknown, and the intelligent matching value of any pesticide compound in the P i database.
- sample further includes the following pretreatment:
- the LC-Q-Orbitrap residue screening technique established by the present invention can correspond to the compound in the electronic identity database of the pesticide compound according to the retention time, the exact mass number, the ion abundance ratio, the collision energy and the like of the target compound.
- the alignment is searched to give the matching degree of the target compound.
- Qualitative screening of pesticides is achieved based on the matching of target compounds.
- the collision energy is innovatively increased, and the acquisition and data extraction of the optimal full-scan mass spectrum are realized by the adjustment of the collision energy, which improves the accuracy of the data.
- the additive ion is selected.
- the mass spectrum with a ratio of 10%-20% is the optimal mass spectrum, which ensures that the additive ions are produced after the collision of the ions, and the presence of the additive ions is also ensured.
- the LC-Q-Orbitrap residue screening technology method established by the invention adopts Full MS/dd MS2 mode injection analysis, and can obtain chromatograms of specified pesticides under the specified chromatographic mass spectrometry by one injection analysis. Mass spectrometry shortens sample analysis time and improves sample detection efficiency.
- the LC-Q-Orbitrap residue screening technology established by the present invention and more than 80% of the more than 500 pesticides screened at the same time have a pesticide screening sensitivity lower than the standard of 10 ⁇ g/kg, which satisfies the pesticides of various countries. Residual MRL level screening requirements, the quality accuracy of this screening technology is less than 5ppm, greatly reducing the false positive detection results, and better meet the multi-residue, high-precision pesticide residue screening requirements.
- the present invention calculates an intelligent matching value for fast and automatic comparison for each compound.
- the intelligent matching value takes into account the information of the exact mass and the ion abundance ratio, and the ion abundance according to the difference between the added ions and the different fragment ions. Compared with the influence of the ion fragment with a large difference, the introduction of the intelligent matching value changes the original deficiency based on human judgment, can achieve accurate braking matching, and truly realize the automation of detection.
- Step NCE is a typical secondary mass spectrum at 20, 40, 60
- Figure 1 shows the LC-Q-Orbitrap pesticide chemical contaminant mass spectrometry database establishment process. The content of the invention has been described in detail. The following is a detailed introduction of the establishment process of pesticide compound electronic ID card by Benalaxyl:
- Chromatographic conditions separation by liquid chromatography system with reversed-phase chromatography column (Accucore aQ 150 ⁇ 2.1 mm, 2.6 ⁇ m); mobile phase A was 5 mM ammonium acetate-0.1% formic acid-water; mobile phase B was 0.1% Formic acid-methanol; gradient elution procedure, 0 min: 1% B, 3 min: 30% B, 6 min: 40% B, 9 min: 40% B, 15 min: 60% B, 19 min: 90% B, 23 min: 90% B , 23.01min: 1% B, after running for 4 min; flow rate is 0.4 mL / min; column temperature: 40 ° C; injection amount: 5 ⁇ L;
- Mass spectrometry conditions Scan mode: Full MS-ddMS 2 ; Full MS scan range: 70-1050 m/z; Resolution: 70,000, Full MS; 17,500, MS/MS; AGC: Full MS, 1e6; MS/MS, 1e5; IT: Full MS, 200ms; MS/MS, 60ms; Loop count: 1; MSX count: 1; Isolation width: 2.0m/z; NCE (Stepped NCE): 40 (50%); Under fill ratio: 1%; Apex trigger: 2-6s; Dynamic Exclusion: 5s; collection and processing of mass spectrometry results by TraceFinder software.
- the five actual measured secondary fragments are 148.11212, 91.05415, 121.08865, 208.13303 and 294.14871, thus combining structural information and
- the molecular formula can determine the theoretical values of its five secondary fragments, which are 148.11208 (C 10 H 14 N, abundance ratio 100.00%), 91.05423 (C 7 H 7 , abundance ratio 85.34%), 121.0886 (C 8 H 11 N, abundance ratio 47.17%), 208.13364 (C 12 H 18 O 2 N, abundance ratio 13.40%) and 294.14886 (C 19 H 20 O 2 N, abundance ratio 5.65%).
- Figure 7 shows the method for electronic detection of pesticides proposed by the present invention, which can simultaneously sample more than 500 kinds of pesticides by preparing samples at one time; canceling the reference of the standard products, and qualitatively identifying by electronic standards, realizing the use of electronic identification cards for real objects
- the standard also achieves a leap-forward development from targeted detection to non-targeted screening. It saves resources, reduces pollution, improves analysis speed, and fully meets the requirements of green development, environmental friendliness, and clean and efficient.
- Table 1 gives an example of five electronic ID cards representing pesticide compounds in the LC-Q-Orbitrap electronic identity database (without molecular formula), and Table 2 gives a list of more than 500 pesticides in the LC-Q-Orbitrap electronic identity database.
- the chicken heart bottle with the sample was rinsed with 2 mL of acetonitrile-toluene solution, and the washing liquid was transferred to a purification column and repeated twice; the column was connected with a 25 mL reservoir and eluted with 25 mL of acetonitrile-toluene solution. After the collection was completed, the mixture was rotary evaporated to about 0.5 mL.
- Nitrogen was blown to near dryness, added with 1 mL of acetonitrile-water solution, sonicated and filtered through a 0.22 ⁇ m nylon membrane for LC-Q-Orbitrap detection. .
- the compound was separated by a liquid chromatography system equipped with a reverse phase chromatography column (Accucore aQ 150 x 2.1 mm, 2.6 ⁇ m); mobile phase A was 5 mM ammonium acetate-0.1% formic acid-water; mobile phase B was 0.1% formic acid- Methanol; gradient elution procedure, 0 min: 1% B, 3 min: 30% B, 6 min: 40% B, 9 min: 40% B, 15 min: 60% B, 19 min: 90% B, 23 min: 90% B, 23.01 Min: 1% B, after running for 4 min; flow rate was 0.4 mL/min; column temperature: 40 ° C; injection volume: 5 ⁇ L.
- Mass spectrometry conditions Scan mode: Full MS-ddMS 2 ; Full MS scan range: 70-1050 m/z; Resolution: 70,000, Full MS; 17,500, MS/MS; AGC: Full MS, 1e6; MS/MS, 1e5; IT: Full MS, 200ms; MS/MS, 60ms; Loop count: 1; MSX count: 1; Isolation width: 2.0m/z; NCE (Stepped NCE): 40 (50%); Under fill ratio: 1%; Apex trigger: 2-6s; Dynamic Exclusion: 5s.
- the mass spectrometry results were collected and processed by TraceFinder software to obtain a chromatogram of the apple sample under the specified chromatographic mass spectrometry conditions.
- Example 1 The sample pretreatment step, the LC-Q-Orbitrap operating conditions, and the pesticide residue screening process in the sample are all referred to in Example 1.
- LC-Q-Orbitrap screening and confirmation techniques for more than 500 pesticides (such as the pesticides described above) in commercially available cabbage.
- Example 1 The sample pretreatment step, the LC-Q-Orbitrap operating conditions, and the pesticide residue screening process in the sample are all referred to in Example 1.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Claims (8)
- 一种基于LC-Q-Orbitrap的食用农产品中农药化合物的电子身份数据库,其特征在于,包括多个农药化合物电子身份证,所述电子身份证包括农药化合物信息、保留时间、加合离子信息、碎片离子信息、碰撞能量和最优全扫描质谱图;所述农药化合物信息包括化合物名称、化合物分子式;通过LC-Q-Orbitrap仪器在Full MS/ddMS 2模式下测量所述农药化合物指定色谱质谱条件下的保留时间,确定所述农药化合物ESI源下的离子化形式(+H、+NH 4、+Na)及化合物分子式,得到农药化合物加合离子的精确质量数;在多次不同碰撞能量下,采集碎片离子的全扫描质谱图,选择离子信息丰富的最优全扫描质谱图,所述最优全扫描质谱图是指加合离子丰度比是10%-20%,在所述最优全扫描质谱图中选择离子丰度比最大的3-5个碎片离子,记录该碰撞能量值;所述碎片离子信息是在所述最优全扫描质谱图下的碎片离子理论精确质量数和丰度比;所述丰度比是指质谱图中该离子与信号最强碎片离子的信号强度比。所述数据库按照电子身份证中的按保留时间进行排序。
- 根据权利要求1所述的一种基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库,其特征在于,所述W b,W q可根据智能匹配模型的变化进行调整,一般取值为W b=W q=0.5。
- 根据权利要求1所述的一种基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库,其特征在于,所述碎片离子的理论精确质量数的确定方法为:1)根据化合物分子式,明确碎片离子元素组成;2)根据质谱图中碎片离子的质量数M,通过计算获得可能的碎片离子元素组成列表;其中:X i为第i个碎片离子元素质量数,n为碎片离子的元素数,y i为第i个碎片离子对应元素的个数。3)通过分子结构的裂解机理从碎片离子元素组成列表中选择合理的碎片离子元素组成,并计算其理论精确质量M′。M′=X 1y′ 1+X 2y′ 2+…+X ny′ n其中:X 1、X 2……X n为所述碎片离子元素质量数,y′ 1、y′ 2、……y′ n为优选碎片离子元素组成的对应元素的个数。
- 根据权利要求1所述的一种基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库,其特征在于,所述色谱质谱条件为:色谱条件:通过液相色谱系统进行分离,配有反相色谱柱(AccucoreaQ 150×2.1mm,2.6μm);流动相A为5mM的乙酸铵-0.1%甲酸-水;流动相B为0.1%甲酸-甲醇;梯度洗脱程序,0min:1%B,3min:30%B,6min:40%B,9min:40%B,15min:60%B,19min:90%B,23min:90%B,23.01min:1%B,后运行4min;流速为0.4mL/min;柱温:40℃;进样量:5μL;质谱条件:扫描模式:Full MS-ddMS 2;Full MS scan range:70-1050m/z;Resolution:70,000,Full MS;17,500,MS/MS;AGC:Full MS,1e6;MS/MS,1e5;Max IT:Full MS,200ms;MS/MS,60ms;Loop count:1;MSX count:1;Isolation width:2.0m/z;NCE(Stepped NCE):40(50%);Under fill ratio:1%;Apex trigger:2-6s;Dynamic Exclusion:5s;通过TraceFinder软件对质谱检测结果采集与处理。
- 一种基于LC-Q-Orbitrap的食用农产品中农药化合物检测方法,包括:1)将待检测样品酸化乙腈匀浆提取,经脱水和离心、浓缩后,再经固相萃 取柱(SPE)净化,乙腈+甲苯溶液洗脱残留农药,经浓缩、过滤后制成样品溶液;2)通过LC-Q-Orbitrap仪器在Full MS/ddMS 2模式下获得样品溶液指定色谱质谱条件下的色谱图和质谱图,从而获得色谱图中的保留时间和加合离子的精确质量数信息,以及对应最佳碰撞能量下得到的碎片离子和质谱图,并记录该保留时间对应的未知物的电子身份证;3)依次将未知物电子身份证与权利要求2中的电子身份数据库中每个农药化合物的电子身份证比较,如果ΔT≤0.3并且ΔP≤10%,则记录该农药化合物,否则进入下一个未知物电子身份证的比较;4)检测完成,显示样品溶液中所含农药化合物的信息;
- 如权利要求6所述的一种基于LC-Q-Orbitrap的食用农产品中农药化合物检测方法,其特征在于,步骤4)中如果ΔT≤0.3并且10%<ΔP≤30%,则通过质谱图中质谱峰的高度和重合度确定度判断是否包括该农药化合物。
- 如权利要求6所述的一种基于LC-Q-Orbitrap的食用农产品中农药化合物检测方法,其特征在于,所述样品还包括如下前处理:称取10.0g样品(精确到0.01g)于100mL离心管中,加入30~40mL酸化乙腈提取液,10000~11000rpm均质1~2min;加入无水硫酸镁和氯化钠(质量比,4:1),振荡8~10min;4200rpm离心5~7min后,取15~20mL上清液于150mL鸡心瓶中,40℃水浴加热旋转蒸发至1~2mL,待净化;使用CarbonNH2柱,在CarbonNH2柱内加入约1~2cm高的无水硫酸钠,用5~6mL乙腈-甲苯溶液预洗SPE净化柱,同时轻敲净化柱排出柱内气泡,净化柱下方流出液弃置。待液面略高于硫酸钠顶部时,将浓缩液转移入净化柱,下接50mL鸡心瓶。用2~3mL乙腈-甲苯溶液冲洗沾有样品的鸡心瓶,将洗涤液转移至净化柱内,重复2~3次;柱上接25mL储液器,以25~30mL乙腈-甲苯溶液 洗脱。收集完毕后旋转蒸发至约0.5mL,氮吹至近干,加入1mL乙腈-水溶液,超声溶解后经0.22μm尼龙膜过滤。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/314,599 US11169128B2 (en) | 2018-04-16 | 2018-12-14 | Electronic ID database and detection method for pesticide compound in edible agro-products based on LC-Q-Orbitrap |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810337240.9 | 2018-04-16 | ||
CN201810337240.9A CN108760909A (zh) | 2017-04-17 | 2018-04-16 | 一种食用农产品农药残留非靶标、多指标、快速侦测的电子化方法 |
CN201811376380.3 | 2018-11-19 | ||
CN201811376380.3A CN109917028B (zh) | 2017-04-17 | 2018-11-19 | 基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库的建立方法及检测方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019200947A1 true WO2019200947A1 (zh) | 2019-10-24 |
Family
ID=68240643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2018/121001 WO2019200947A1 (zh) | 2018-04-16 | 2018-12-14 | 基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库及检测方法 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2019200947A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113295790A (zh) * | 2021-05-20 | 2021-08-24 | 中国科学院成都生物研究所 | 一种畜禽肉及其副产品中兽药化合物残留的检测方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2927691A1 (en) * | 2014-04-04 | 2015-10-07 | IDCGS clinica de Diagnosticos Medicos | Biomarkers for assessing HIV |
CN105651917A (zh) * | 2015-12-28 | 2016-06-08 | 中国检验检疫科学研究院 | 一种水生类蔬菜中708种农药残留gc-q-tof/ms侦测技术 |
CN105823832A (zh) * | 2015-12-28 | 2016-08-03 | 中国检验检疫科学研究院 | 一种仁果类水果中544种农药残留lc-q-tof/ms侦测技术 |
CN107077592A (zh) * | 2014-03-28 | 2017-08-18 | 威斯康星校友研究基金会 | 高分辨率气相色谱‑质谱数据与单位分辨率参考数据库的改进谱图匹配的高质量精确度滤波 |
CN107085049A (zh) * | 2017-04-17 | 2017-08-22 | 中国检验检疫科学研究院 | 一种食用农产品农药残留非靶标、多指标、快速侦测的电子化方法 |
CN108760909A (zh) * | 2017-04-17 | 2018-11-06 | 中国检验检疫科学研究院 | 一种食用农产品农药残留非靶标、多指标、快速侦测的电子化方法 |
-
2018
- 2018-12-14 WO PCT/CN2018/121001 patent/WO2019200947A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107077592A (zh) * | 2014-03-28 | 2017-08-18 | 威斯康星校友研究基金会 | 高分辨率气相色谱‑质谱数据与单位分辨率参考数据库的改进谱图匹配的高质量精确度滤波 |
EP2927691A1 (en) * | 2014-04-04 | 2015-10-07 | IDCGS clinica de Diagnosticos Medicos | Biomarkers for assessing HIV |
CN105651917A (zh) * | 2015-12-28 | 2016-06-08 | 中国检验检疫科学研究院 | 一种水生类蔬菜中708种农药残留gc-q-tof/ms侦测技术 |
CN105823832A (zh) * | 2015-12-28 | 2016-08-03 | 中国检验检疫科学研究院 | 一种仁果类水果中544种农药残留lc-q-tof/ms侦测技术 |
CN107085049A (zh) * | 2017-04-17 | 2017-08-22 | 中国检验检疫科学研究院 | 一种食用农产品农药残留非靶标、多指标、快速侦测的电子化方法 |
CN108760909A (zh) * | 2017-04-17 | 2018-11-06 | 中国检验检疫科学研究院 | 一种食用农产品农药残留非靶标、多指标、快速侦测的电子化方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113295790A (zh) * | 2021-05-20 | 2021-08-24 | 中国科学院成都生物研究所 | 一种畜禽肉及其副产品中兽药化合物残留的检测方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109917028B (zh) | 基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库的建立方法及检测方法 | |
Knolhoff et al. | Non-targeted screening approaches for contaminants and adulterants in food using liquid chromatography hyphenated to high resolution mass spectrometry | |
Causon et al. | Fingerprinting of traditionally produced red wines using liquid chromatography combined with drift tube ion mobility-mass spectrometry | |
CN104797939B (zh) | 微生物分析的设备和方法 | |
CN111721857A (zh) | 一种运用广泛靶向代谢组学技术鉴别荔枝品种的方法 | |
CN108828051B (zh) | 快速蒸发离子化质谱的南极磷虾油的脂质实时检测方法 | |
CN105823832A (zh) | 一种仁果类水果中544种农药残留lc-q-tof/ms侦测技术 | |
CN113552247A (zh) | 一种样品未知成分的液质联用非靶向分析方法 | |
CN112162054A (zh) | 一种沙生槐蜂蜜的真实性评价方法 | |
CN107192770B (zh) | 一种鉴别荆条蜜与糖浆掺假荆条蜜的分析方法 | |
CN105486796A (zh) | 一种瓜果类水果中544种农药残留lc-q-tof/ms侦测技术 | |
WO2019200947A1 (zh) | 基于LC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库及检测方法 | |
CN111487353B (zh) | 高含量泽兰黄酮-4’,7-双葡萄糖苷作为玫瑰蜂花粉特征性标志物的应用 | |
Hawkes et al. | High-resolution mass spectrometry strategies for the investigation of dissolved organic matter | |
CN111337605B (zh) | 一种评价荷花蜂花粉真实性的方法 | |
CN105784900A (zh) | 一种茄果类蔬菜中544种农药残留lc-q-tof/ms侦测技术 | |
WO2019200946A1 (zh) | 基于GC-Q-Orbitrap的食用农产品中农药化合物电子身份数据库及检测方法 | |
Rosnack et al. | Screening solution using the software platform UNIFI: an integrated workflow by waters | |
Deng et al. | Quality assessment and origin tracing of Guangdong Liangcha granules using direct mass spectrometry fingerprinting | |
CN105784898A (zh) | 一种柑橘类水果中544种农药残留lc-q-tof/ms侦测技术 | |
CN105675789A (zh) | 一种瓜类蔬菜中544种农药残留lc-q-tof/ms侦测技术 | |
CN105486795A (zh) | 一种浆果和其它小型水果中708种农药残留gc-q-tof/ms侦测技术 | |
CN105784896A (zh) | 一种根茎类和薯芋类蔬菜中544种农药残留lc-q-tof/ms侦测技术 | |
CN105675738A (zh) | 一种茎类蔬菜中544种农药残留lc-q-tof/ms侦测技术 | |
CN105675703A (zh) | 一种食用菌中544种农药残留lc-q-tof/ms侦测技术 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18915526 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18915526 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 03/02/2021) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 18915526 Country of ref document: EP Kind code of ref document: A1 |