The leaders of each inspection team will personally ensure the correct direction of the "looking back" work

In accordance with the Party Central Committee、国务院部署第一批中央环境保护督察“回头看”进驻后各督察组组长身体力行率先垂范敢于碰硬狠抓支部建设队伍建设作风建设和纪律建设把握督察方向和重点带领督察组扎实开展工作朱之鑫组长高度重视群众信访举报问题整改情况先后带队赴河北省衡水市核实偷倒建筑垃圾油烟直排噪音扰民等举报问题查处整改情况赴沧州市检查企业未批先建违规生产情况要求地方党委政府认真落实党政同责一岗双责,Strengthen supervision,加快整改并做到举一反三以高度的责任感紧迫感使命感向群众交上一份满意答卷吴新雄组长坚决落实习近平总书记关于“加快呼伦湖乌梁素海岱海等水生态综合治理”的重要指示精神现场检查呼伦湖国家级自然保护区管理局保护区监控平台和视频系统查看额尔古纳市集中式饮用水源地整改情况现场拨打水源地标识上的举报电话并要求地方一定要发挥举报电话作用不能只是挂在牌子上搞形式主义黄龙云组长先后带队到哈尔滨伊春鹤岗佳木斯等市开展明察暗访深入恶臭刺鼻的垃圾填埋场污水横流的企业偷排口风沙弥漫的沙土堆放点实地查看群众举报问题查处情况深入自然保护区饮用水源地污水处理厂督察突出环境问题要求地方党委和政府扎实推进问题整改切实解决好群众反映强烈的突出环境问题马中平组长先后赴江西省上饶市江苏省南京市苏州市等地开展现场督察实地检查水质监测河道治理以及农村生活污水治理和集中饮用水源地整治等具体问题督察中马中平组长反复叮嘱一定要在习近平生态文明思想指引下坚持“共抓大保护不搞大开发”,Strengthen responsibility,落实督察要求确保“一江清水向东流”张宝顺组长带队赴广西壮族自治区百色河池等地深入企业排污口废渣堆放点等地开展督察针对广西存在的整改不到位问题要求必须把习近平生态文明思想落到实处要认真列出责任清单和问题清单坚决全面彻底排查整改绝不能以牺牲环境为代价换取经济发展要构建以政府为主导企业为主体社会组织和公众共同参与的环境治理体系推动生态环境保护长远发展朱小丹组长亲自接听群众举报电话深入检查滇池污染治理海河黑臭水体整治昭通垃圾污染问题整改等工作情况看望慰问督察组和地方配合工作组人员提醒大家要把习近平生态文明思想不折不扣地落实到工作各环节全过程做到高标准、Strict requirements,Insist on being problem-oriented,敢于动真碰硬以铁的纪律约束一言一行树立铁军形象在各督察组组长的带领下第一批中央环境保护督察“回头看”顺利进驻各项督察工作有序开展发现并曝光了一批虚假整改、Surface rectification、敷衍整改的典型案例推动解决了一大批突出环境问题取得了实实在在的督察效果获得人民群众的普遍认可和称赞

This act,This has led to the disqualification of 14 auditors in 2018!

According to the information published on the official website of the China Certification and Accreditation Association (CCAA).,2018Year-to-date,The CCAA issued a total of 4 violations,16 certified personnel were punished。Among them, 14 were found to have a false audit experience,The violation of fraudulently obtaining the qualification of a registered person is revoked。 It is stipulated in the Guidelines for the Registration of Management System Auditors,Applicants are required to be Trainee Auditors,As a member of the audit team, under the guidance and help of auditors and above, complete at least 4 complete system audits in the corresponding fields,No less than on-site audit experience 15 sky。I hope that the majority of auditors will take this as a warning,Strictly abide by the requirements of the "Management System Auditor Registration Guidelines".,Strictly regulate their own behavior。 By consulting the notice published publicly on the CCAA website,There are two main aspects of auditor irregularities:One is that the auditor violated the rules when registering;The other is a violation during the review process。  

Guidelines for the classification and management of laboratory reagents

Chemical reagents are the most diverse in the laboratory、Consumption acquisitions are the most frequent、It is also the most dangerous substance,therefore,The management of chemical reagents is undoubtedly the top priority of laboratory managers。The management of reagents can be said to be the most important part of laboratory management,Because reagent safety is related to laboratory safety。So the knowledge of laboratory reagent classification in this article,Let's share it! Classification of chemical reagents The specifications of reagents in China are basically based on purity(The amount of impurities)divide,High purity in total、Spectrally pure、benchmark、Spectroscopic pure、Superior Pure、7 kinds of analysis and chemical purity。The state and competent authorities promulgate the main quality indicators of the main excellent grade、There are 3 types of graded pure and chemically pure。 (1)Superior Pure(GR:Guaranteed reagent),Also known as first-class product or guarantee reagent,99.8%,This reagent is the purest of all kinds,Lowest levels of impurities,It is suitable for important and precise analytical work and scientific research work,Use a green bottle stick。 (2)Analytical pure(AR),Also known as secondary reagent,The purity is high,99.7%,Slightly inferior to superior pure,Suitable for important analytical and general research work,Use a red bottle stick。 (3)Chemically pure(CP),Also known as tertiary reagent,≥ 99.5%,The purity is quite different from the analytical purity,Suitable for industrial and mining applications、School general analysis work。Use blue(Dark blue)label。 (4)Experimental reagents(LR:Laboratory reagent),Also known as quaternary reagent。 In addition to the above four levels,There are still in the market at the moment: Reference reagents(PT:Primary Reagent):It is used exclusively as a reference material,Standard solutions can be prepared directly。 Spectrally pure reagents(SP:Spectrum pure):Indicates spectral purity。But because organic matter is not visible on the spectrum,So sometimes the principal component does not reach more than 99.9%.,Care must be taken when using it,This is especially true when used as a reference material,Calibration is mandatory。 Reagents whose purity is much higher than that of high-grade purity are called high-purity reagents(≥ 99.99%)。 presently,The specifications of chemical reagents produced by foreign reagent factories tend to be divided by use,The common ones are as follows: Biochemical reagents (BC:Biochemical) Biological reagents (BR:Biological reagent) Biological stains (BS:Biological Stain) For complexation titration (FCM:For Complexometry) For chromatography (FCP:For chromatography purpose) Fluorescence analysis(FIA) For microorganisms(FMB) Microscope (FMP:For microscopic purpose) For synthetics (FS:For synthesis) Gas chromatography (GC:Gas chromatography) High-pressure liquid chromatography (HPLC:High Pressure Liquid chromatography) Indicator (Ind:Indicator) Infrared absorption(IR) Liquid chromatography(LC) nuclear magnetic resonance(NMR) Organic Analysis Standards (OSA:Organic analytical standard) Analytical(PA:Pro analysis) For internships (Pract: Practical use)(Pure purum Read More …

Six national standards and four testing method standards related to food pesticide residues were released for the first time

6May 4th,The Ministry of Agriculture issued national food safety standards such as the maximum residue limit of pesticides and the detection methods of pesticide residues for public consultation(Call for Comments)Comment letter,Four of these test method standards have been published for the first time,Gas chromatography is involved、Liquid chromatography-mass spectrometry、 High performance liquid chromatography and other detection methods。 It is reported,The "Maximum Residue Limits of 51 Pesticides such as Avermectin in Food" quasi-stipulates 383 maximum pesticide residue limits for 51 pesticides such as avermectin in food;The "Maximum Residue Limits of 74 Pesticides Including 2,4-Butyric Acid in Food" quasi-stipulates 193 maximum residue limits of 74 pesticides such as 2,4-butyric acid in seasonings。 Read More …

The basic principles of various instrumental analyses and spectral representation methods

Principles of UV Absorption Spectroscopy:Absorbs ultraviolet light energy,Causes a transition of the electron energy level in a molecule Representation of the spectrum:The relative absorption of light energy as a function of the wavelength of the absorbed light provides information:The location of the absorption peak、Strength and shape,Provides information on the different electronic structures in the molecule Fluorescence spectrometry FS analysis principle:After being excited by electromagnetic radiation,From the lowest single-line excited state back to the single-line ground state,Presentation of the emission fluorescence spectrum:The fluorescence energy emitted varies with the wavelength of the light information provided:Fluorescence efficiency and longevity,Provides information on the different electronic structures in a molecule Infrared absorption spectrometry IR analysis principle:Absorbs infrared light energy,Causes vibrations of molecules with dipole moment changes、Rotational energy level transition spectra are noted:Relative transmitted light energy varies with the frequency of transmitted light information provided:The location of the peak、Strength and shape,Provides the characteristic vibrational frequencies of functional groups or chemical bonds Raman spectroscopy Principles of RAM analysis:After absorbing light energy,Causes molecular vibrations with a change in polarizability,A representation of the Raman scattering spectrum that is generated:The variation of scattered light energy with Raman displacement provides information:The location of the peak、Strength and shape,Provides the characteristic vibrational frequencies of functional groups or chemical bonds NMR Spectroscopy Principles of NMR Analysis:in an external magnetic field,A nucleus with a nuclear magnetic moment,Absorbs RF energy,Representation of the transition spectrum that produces the nuclear spin level:The change in absorbed light energy with chemical shift provides information:The chemical shift of the peak、strength、Split fraction and coupling constant,The number of nuclei provided、Information on the chemical environment and geometry Electron paramagnetic resonance spectroscopy Principles of ESR analysis:in an external magnetic field,Unpaired electrons in the molecule absorb RF energy,A representation of the resulting electron spin level transition spectrum:Absorbed light energy or differential energy varies with the strength of the magnetic field information:Spectral line position、strength、Number of splits and superfine splitting constants,Provides unpaired electron density、Molecular bond properties and geometrical configuration information Mass spectrometry MS analysis principles:The molecule is bombarded by electrons in a vacuum,Ionization is formed,Separation by electromagnetic field by different m/e Representation of spectra:Representation of the relative kurtosis of ions as a function of m/e in the form of a bar plot provides information:The mass of molecular ions and fragment ions and their relative kurtosis,Molecular weight is provided,Information on elemental composition and structure Gas chromatography Principles of GC analysis:The components in the sample are between the mobile phase and the stationary phase,Separation due to different partition coefficients Representation of spectra:Changes in post-column effluent concentrations with retention values provide information:The retention values of the peaks are related to the thermodynamic parameters of the components,It is a qualitative basis;Peak area is related to component content Reverse gas chromatography IGC analysis principle:The retention value of the probe molecule varies depending on how the interaction force between it and the polymer sample as a stationary phase is represented in the spectra:The logarithmic value of the specific retained volume of the probe molecule as a function of column temperature provides information:The probe molecule retention value as a function of temperature provides the thermodynamic parameters of the polymer Pyrolysis Gas Chromatography PGC Analytical Principles:Polymer materials are instantaneously cracked under certain conditions,A representation of fragment spectra with certain characteristics can be obtained:Changes in post-column effluent concentrations with retention values provide information:Fingerprint or characteristic fragmentation peaks of the spectrum,Characterize the chemical structure and geometry of polymers by gel chromatography Principles of GPC analysis:As the sample passes through the gel column,Separation is carried out according to the hydrodynamic volume of the molecule,Macromolecules elution first Representation of the spectrum:Changes in post-column effluent concentrations with retention values provide information:The average molecular weight of polymers and their distribution Thermogravimetric TG analysis principle:In a temperature-controlled environment,Sample weight as a function of temperature or time How the spectra are presented:The weight fraction of a sample as a function of temperature or time provides information:The steep drop in the curve is the sample weight loss area,The platform area is the thermally stable zone of the sample Thermal Difference Analysis DTA Analytical Principle:The sample and the reference were placed in the same temperature-controlled environment,Due to the difference in thermal conductivity between the two, the temperature difference occurs,Record the change in temperature as a function of ambient temperature or time Representation of the spectrum:The curve of the temperature difference as a function of ambient temperature or time provides information:Provides information on the thermal transition temperature of polymers and various thermal effects Differential scanning calorimetry analysis Read More …