Penanganan Alat Dan Bahan Yang Baik Dalam Rangka Menunjang Kegiatan Di Laboratorium Kimia

METANA ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 58
Author(s):  
Raharjo Raharjo ◽  
Sri Harjanto
Keyword(s):  
Chemistry Laboratory ◽  
Laboratory Equipment ◽  
Chemical Laboratory ◽  
Laboratory Environment ◽  
Handling System ◽  
Research Activities

Fasilitas alat dan bahan di lingkungan laboratorium kimia bagi mahasiswa yang sedang menyelesaikan tugas penelitian merupakan suatu hal yang tidak bisa terpisahkan, dan sangat diperlukan keberadaanya. Maka  sistem kelola, cara penanganan dengan  baik dan benar terutama  yang berhubungan dengan bahan kimia ataupun alat gelas dan instrumen mulai dari proses pengadaan, penerimaan , pengemasan, penyimpanan sampai penyaluran, penggunaan sesuai dengan tata kelola yang baik dan benar, juga ditunjang pelayanan yang memadai akan sangat membantu dalam rangka penyelesaian kegiatan penelitian mahasiswa Tugas Akhir di laboratorium kimia. Handling of good equipments and materials to order to supply activities studensts at the chemical laboratory  Equipment and materials facilities in chemical laboratory environment for students who are completing research tasks is an inseparable, and indispensable condition. Therefore, good and proper handling system, especially those related to chemicals or glassware and instruments starting from the procurement, receiving, packaging, storage until distribution, use in accordance with good and correct governance, also supported by adequate services will very helpful in the completion of research activities of Final Final students in the chemistry laboratory.

scholarly journals PELATIHAN DAN PENDAMPINGAN DEMO INSTRUMENTASI BAGI MAHASISWA SEBAGAI BAGIAN GOOD LABORATORY PRACTICE

2021 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Dhony Hermanto ◽  
Nurul Ismillayli ◽  
Ulul Khairi Zuryati ◽  
Ruru Honiar ◽  
Baiq Mariana ◽  
...  
Keyword(s):  
Community Service ◽  
High Performance ◽  
Good Laboratory Practice ◽  
Routine Activity ◽  
Chemistry Laboratory ◽  
Laboratory Practice ◽  
Chemical Laboratory ◽  
Research Activities ◽  
Service Activity ◽  
Good Laboratory

ABSTRAKLaboratorium kimia merupakan salah satu jenis laboratorium yang memiliki resiko sangat berbahaya dalam penyelenggaraan pendidikan, penelitian dan/atau pengabdian kepada masyarakat, sehingga laboratorium harus dikelola dan digunakan secara baik dan bijaksana. Pengoperasian peralatan sebagai salah satu aktivitas Good Laboratory Practice (GLP) merupakan aktivitas secara rutin dilakukan di laboratorium kimia. GLP dapat mewujudkan keselamatan kerja di laboratorium dan meminimalisir kerusakan peralatan akibat kesalahan operasi dan pemeliharaan instrumen. Kegiatan pengabdian ini adalah demo peralatan/instrumentasi Laboratorium Kimia Analitik FMIPA–Universitas Mataram. Metode kegiatan yang dilakukan yaitu pelatihan dan pendampingan yang berupa demo peralatan/instrumentasi meliputi kromatografi gas–spektroskopi massa (GC-MS), kromatografi cair kinerja tinggi (KCKT), spektrometer serapan atom (SSA) dan infra merah (FTIR). Kegiatan ini dilakukan untuk meningkatkan keterampilan dasar mitra dalam pengoperasian instrumentasi tersebut. Mitra kegiatan adalah 20 mahasiswa program studi Kimia semester lanjut (5-8). Keberhasilan kegiatan diukur dengan membandingkan skor tes mitra sebelum dan setelah kegiatan dilakukan. Kegiatan pengabdian berlangsung baik dan menghasilkan peningkatan pemahaman serta keterampilan mitra dalam mengoperasikan instrumen yang ditunjukkan dengan peningkatan skor tes mitra. Kegiatan ini diharapkan dapat mewujudkan GLP sehingga kegiatan penelitian dilakukan dengan aman dan efisien. Kata kunci: pelatihan; instrumen; good laboratory practise; mahasiswa. ABSTRACTChemical laboratory is one type of laboratory that has a very dangerous risk in the implementation of education, research and/or community service, so the laboratory must be managed and used properly and wisely. Equipment operation as one of the Good Laboratory Practice (GLP) activities is a routine activity carried out in chemical laboratory. GLP could realize work safety in laboratory and minimize instrument operation and maintenance mistake This community service activity was a demonstration of instrumentation of the Analytical Chemistry Laboratory, FMIPA–University of Mataram. The method of activity carried out are training and assistance in form of instrument demo including gas chromatography–mass spectroscopy (GC-MS), high performance liquid chromatography (HPLC or HPLC), atomic absorption spectrometer (SSA or AAS) and infrared spectrometer (FTIR). This activity is carried to improve basic skill of partner in operating of instruments. The activity partners are 20 students of the advanced semester (5-8th semester) in Departement of Chemistry. The success of activity was measured by comparing the partner’s test score before and after the activity was carried out.The service activity went well and could increase the partners' understanding and skills in operating the instrument. This activity is expected to realize the GLP so that research activities are carried out safely and efficiently. Keywords: training; instrument; good laboratory practice; student.

scholarly journals Research tools aplicable in designing of high-speed and high-power rail vehicles

2021 ◽  
Vol 31 ◽  
pp. 10-17
Author(s):  
Vojtěch Dybala
Keyword(s):  
High Power ◽  
High Speed ◽  
Mechanical Engineering ◽  
Dynamic Behaviour ◽  
Road Transport ◽  
Railway Vehicle ◽  
Railway Transport ◽  
Laboratory Equipment ◽  
Research Activities ◽  
Rail Vehicles

The importance of the railway transport of both goods and passengers continuously grows as it is in many points of view more ecological and economical solution in comparison with road transport. Just the importance has been supporting efforts to design more powerful and faster trains reaching traction powers more than 1.6 MW per a wheel-set or service top speed much more than 300 km/h till these days. To reach design which has enabled such a kind of performances it was necessary to research dynamic behaviour of railway vehicles. Both via laboratory measurements and simulations. The laboratory experiments have been carried out on a specially designed laboratory equipment called roller rigs. A laboratory equipped by roller rig for testing of the railway vehicle dynamic behaviour has been built at the Faculty of Mechanical Engineering at CTU in Prague, also within PhD studyprograms and SGS grants. Another powerful tool within research activities is a simulation. Kind of a such simulation will be presented by this contribution with the focus on the torsion dynamics of high-power fully-suspended drive of a railway vehicle, which has been developed also by PhD students under financial support of The Faculty of Mechanical Engineering and related grants.

scholarly journals Pemeliharaan Dan Penyimpanan Peralatan Laboratorium Kimia

2009 ◽  
Vol 1 (1) ◽  
pp. 26
Author(s):  
Jufriyah Jufriyah ◽  
Isna Mar'ah ◽  
Kelik Isharyudono
Keyword(s):  
Life Span ◽  
Working Life ◽  
Classification Method ◽  
Direct Impact ◽  
Laboratory Equipment ◽  
Chemical Laboratory ◽  
Frequency Of Use ◽  
Group Frequency ◽  
And Storage

Improper maintenance and storage of laboratory equipment, will shorten the life span. Damage to the tool will have a direct impact on the costs that must be incurred to replace damaged equipment components or even procurement of new equipment. The purpose of this paper is to provide an understanding of how to maintain and store chemical laboratory equipment. And can identify damage to chemical laboratory equipment. Broadly speaking, the tool maintenance method is divided into two parts: planned maintenance and unplanned maintenance. For storage of tools using the classification method based on the tool group, frequency of use and the nature of the tool. Maintenance and storage of chemical laboratory equipment is an activity process in order to anticipate damage as early as possible so that it can increase the efficiency of the working life of the equipment used. So that the chemical laboratory equipment can function optimally and always in a state of ready use, it is necessary to have knowledge about how to maintain and store laboratory equipment and how to identify equipment damage as early as possible. Maintenance and storage of chemical laboratory equipment properly can prevent damage to chemical laboratory equipment that will extend the life of the equipment, and ensure the comfort and safety of the user.

Learning environment in the undergraduate chemistry laboratory courses in Beirut

2018 ◽  
Vol 8 (1) ◽  
pp. 08-20
Author(s):  
Hanan Arnous ◽  
Zalpha Ayoubi
Keyword(s):  
Learning Environment ◽  
Undergraduate Students ◽  
Significant Proportion ◽  
Private University ◽  
Chemistry Laboratory ◽  
Laboratory Environment ◽  
Undergraduate Chemistry ◽  
Laboratory Courses ◽  
Chemistry Learning ◽  
Material Environment

The undergraduate chemistry laboratory is an ideal place for meaningful learning to occur, and the laboratory work is considered as an integral part of most chemistry courses; however, a significant proportion of laboratory experiments remain highly prescriptive and fail to challenge undergraduate students. This study investigated the chemistry laboratory environment among 170 undergraduate students at a private university in Beirut, Lebanon. Data were collected using the Chemistry Laboratory Environment Inventory with its both versions: Actual Chemistry Laboratory Environment Inventory and Preferred Chemistry Laboratory Environment Inventory. The findings of this study showed that the students prefer a chemistry learning environment with greater levels of integration and material environment, but less level of open-endedness. Suggestions for improving chemistry laboratory learning environments are provided. Keywords: Chemistry, laboratory, undergraduate courses, learning environment.  

Application of Artificial Clay Samples (Pellets) in Laboratory Testing of Shale/Drilling Fluid Interaction

2013 ◽  
Author(s):  
Borivoje Pasic ◽  
Nediljka Gaurina-Medjimurec ◽  
Bojan Moslavac
Keyword(s):  
Laboratory Testing ◽  
Drilling Fluid ◽  
Petroleum Industry ◽  
Drilling Fluids ◽  
Surface Sampling ◽  
Laboratory Equipment ◽  
Wellbore Instability ◽  
Research Activities ◽  
Physico Chemical ◽  
Fluid Interaction

Wellbore instability was and is one of the most frequent problems in petroleum industry, especially in the drilling operations. It is mainly caused by the shale formations which represent 75% of all drilled formations. The wellbore instability problems involve tight hole spots, wellbore diameter enlargement, the appearance of cavings, the inability of carrying out wireline operations, poor hole cleaning, unsuccessful wellbore cementing operations and other. The wellbore instability is the result of mechanical and physico-chemical causes mostly acting concurrently. The shale instability basically comes out of its mineralogical composition (especially clay minerals content) and physico-chemical properties. Shale-mud interaction includes water/ions movement in and out of the shales due to pressure differential, osmosis, diffusive flow and capillary pressure. Many research activities about shale instability causes and shale properties (affecting shale behavior) definition have been carried out by now. Different shale samples, laboratory equipment and inhibitive muds have been used. Laboratory tested shale samples are provided by the wellbore cores, surface sampling or, which is the simplest method, by collecting the samples at the shale shakers during drilling operation. The amount of these samples is not enough for laboratory testing. Another problem is closely connected to sample quality and preservation. There are also differences in drilling fluids used in these laboratory tests, especially in their composition (sometimes containing more than one shale inhibitor). It is difficult to compare test results and conclusions made by different authors. The laboratory study presented within this paper are done with artificial clay samples (pellets) made by compacting the powderish material containing exact quantity of quartz, montmorillonite and kaolinite. The laboratory testing is done by treating the powderish samples inside the desiccator (24 hours), compacting (30 minutes), swelling (24 hours) and drying samples (24-hour). Sample swelling is tested by using different mud types and the sample mass is measured in each above mentioned phase. Special attention is directed to preparation and pellets content definition as a good replacement for the original shale in laboratory testing of shale and drilling fluid interaction. The influence of used muds on the total pellet swelling and swelling intensity, especially at the early phase of testing was determined.

Overcoming the Limitations of Current Online Laboratory Systems Using Game-Based Virtual Environments

2011 ◽  
Author(s):  
Yizhe Chang ◽  
El-Sayed Aziz ◽  
Sven K. Esche ◽  
Constantin Chassapis
Keyword(s):  
Computer Game ◽  
Gear Train ◽  
Virtual Laboratory ◽  
Planetary Motion ◽  
Game Engine ◽  
Laboratory Equipment ◽  
Experimental Procedure ◽  
Laboratory Environment ◽  
Online Laboratory ◽  
Experimental Apparatus

Current online laboratory systems based on either remotely operated hardware or pure software simulations are often criticized for lacking experimental setup experience and for being limited to the data collection and result analysis aspects of traditional hands-on laboratories. One possible solution for overcoming these shortcomings is to use a multi-player computer game engine for implementing interactive laboratory environments. Taking advantage of game technology, the students are enabled to simultaneously interact with laboratory equipment in the virtual laboratory and to communicate with each other through voice or chat. In particular, assembling the experimental equipment before using it in some experimental procedure can become part of the laboratory exercise. In this article, a virtual gear design laboratory environment for a junior-level undergraduate mechanical engineering course on mechanisms and machine dynamics is presented. This virtual laboratory environment implemented using a multiplayer computer game engine provides the students with the flexibility to perform various experiments related to the concepts of the fundamental law of gearing and to planetary motion of gears. In this environment, the students can work in teams to interactively select and cooperatively assemble gear train components piece by piece into a more complex experimental apparatus. This article describes the assembly logic that is used to combine individual components into experimental setups as part of the experimental procedure in student laboratories. Furthermore, the game environment can be equipped with functionality for monitoring the students’ progress and learning outcomes, thus enabling skill-based assessment.

scholarly journals Assessment of Chemistry Laboratory Equipment Availability and Practice: A Comparative Study Between Damot and Jiga Secondary Schools

2021 ◽  
Vol 5 (2) ◽  
Keyword(s):  
High School ◽  
Secondary School ◽  
Chemistry Laboratory ◽  
Laboratory Practice ◽  
Laboratory Equipment ◽  
Senior Secondary School ◽  
Equipment Availability ◽  
The Status ◽  
Senior Secondary ◽  
Total Average

The project was designed to compare the laboratory equipment availability (facilities) and status of practical work between Damot senior secondary school and Jiga senior secondary school and their performance with the standard (average test value). All chemistry teachers and 30 students from each secondary schools a total of 84 respondents were involved. Closed ended questionnaire were prepared and descriptive survey method was employed to describe and one sample t-test method was used to assess the degree of availability of facility and the status of implementation and independent t-test was used to compare the degree of availability of facility and the status of implementation. Total average equipment availability and total average laboratory practice (Mean=2.09, sd=0.29, t(83)=-12.53, p<0.05) is far from the test value (2.5). Average Laboratory equipment availability and laboratory practice in Damot high school is (Mean=2.31, SD= 0.221, n=43) had statistically significant difference from Jiga high school (Mean=1.87, SD=0.158, n=41), t(82) =10.611, p<0.05, Cohen’s d=2.32. From the analysis of Chemistry laboratory equipment availability and laboratory practice in both Damot secondary school and Jiga secondary school were found in very low level and much far less than the average availability of chemistry laboratory equipment and status of laboratory practice. From the data analysis average chemistry laboratory equipment availability and status of laboratory practice of Damot secondary school is better than that of Jiga secondary school.

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