Pengendalian Persediaan Bahan Kimia Dichloromethane dengan Metode Economic Order Quantity Probabilistik pada Perusahaan Jasa Laboratorium

Pujiana Rahayu; Didi Junaedi; Iwan Roswandi

doi:10.22441/pasti.2026.v20i1.006

Authors

Pujiana Rahayu Universitas Mercu Buana, Indonesia
Didi Junaedi Universitas Mercu Buana, Indonesia
Iwan Roswandi Universitas Mercu Buana, Indonesia

DOI:

https://doi.org/10.22441/pasti.2026.v20i1.006

Keywords:

Dichloromethane, Probabilistic EOQ, Safety Stock, Reorder Point, Total Inventory Cost

Abstract

Determination of Pesticide Residue Levels in River Water using Gas Chromatography method has the working principle of extraction using Dichloromethane at a certain pH. The application of Dichloromethane is proportional to the demand for testing river water samples, so the availability of this chemical must be considered. Laboratory Services Companies sometimes experience problems in controlling Dichloromethane supplies. This is because inconsistent ordering patterns and the company do not have a definite reference to the order. The purpose of this study was to determine the optimal size of the order, point of reorder, amount of safety stock and total cost of Dichloromethane supplies. The inventory method used is the Probabilistic Economic Order Quantity method which produces an optimal Q value of 23 bottles. Where Safety Stock is obtained for 3 bottles and Reorder Points are for 7 bottles. Then calculate the Total Probabilistic EOQ Inventory Cost to get Rp. 2,274,491. - with a savings of Rp. 972,043. - or in percent around 29,94%.

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References

Aprilia, A., Sidik, M. D., & Fujiyanti, L. (2018). Sistem Penunjang Keputusan Persediaan Produksi Grafika dengan Pendekatan Economic Order Quantity (EOQ). Jurnal PASTI, 12(1), 34–49.

Eddy, H. (2015). Manajemen Operasi (3rd ed.). Grasindo.

Elmas, M. S. H. (2017). Analysis Control Supplies RAW Materials with The EQQ Methods in the Smoothness of The Production Process. International Journal of Social Science and Business, 1(3), 186–196. http://dx.doi.org/10.23887/ijssb.v1i3.11783

Eunike, A., Setyanto, N. W., Yuniarti, R., Hamdala, I., Lukodono, R. P., & Fanani, A. A. (2021). Perencanaan Produksi dan Pengendalian Persediaan. UB Press.

Fajrin, E. H. A., & Slamet, A. (2016). Analisis Pengendalian Pesediaan Bahan Baku dengan Menggunakan Metode Economic Order Quantity (EOQ) pada Perusahaan Roti Bonansa. Management Analysis Journal, 5(4), 289–298.

Heizer, J., & Render, B. (2015). Manajemen Operasi (11th ed.). Salemba Empat.

Kartika, H., & Bakti, C. S. (2020). Usulan Perbaikan Persediaan Bearing 6004-2rsl Dengan Metode Economic Order Quantity Pada Divisi Sparepart Di PT SI. Journal of Industrial Engineering & Management Research(JIEMAR), 1(1), 17–22.

Noerdin, D., Hardian, A., Herlina, H., Astuti, W., & Pramuditha, L. (2015). Residu Pestisida pada Air Sungai dan Air Sumur di Sentra Perkebunan Bandung. Seminar Nasional Ilmu Pengetahuan Dan Teknologi (IPTEK) Jendral Achmad Yani, 382–387.

Oktavia, C. W., & Natalia, C. (2021). Analisis Pengaruh Pendekatan Economic Order Quantity Terhadap Penghematan Biaya Persediaan. Jurnal PASTI, 15(1), 103. https://doi.org/10.22441/pasti.2021.v15i1.010

Panday, R., & Navanti, D. (2021). Inventory Management Evaluation and Inventory Forecast Using EOQ. Syntax Literate ; Jurnal Ilmiah Indonesia, 6(1), 395. https://doi.org/10.36418/syntax-literate.v6i1.2286

Silalahi, A. C., & Siregar, R. (2022). Determination of the Inventory of Cassava Raw Materials UD Rezeky Baru Medan Based on the Economic Order Quantity (EOQ) Method. Journal of Mathematics Technology and …, 1(2), 222–229. https://doi.org/10.32734/jomte.v1i2.7682

Siswanto. (2007). Operation Research Jilid 2. Erlangga.

Sumbodo, D., & Suprianto, E. (2014). Analisa Pengendalian Persediaan Material dengan Model EOQ di PT X Aeroasia. In Indept (Vol. 4, Issue 3, pp. 17–24).

Syarif, A. A., Hasibuan, Y. M., Kusuma, B. S., & Harapan, U. (2022). AN INVENTORY PLANNING AND CONTROL ANALYSED USING ECONOMIC ORDER QUANTITY ( EOQ ) AND PERIOD ORDER QUANTITY ( POQ ) METHODS AT UD . MARIADI RANGKA. 10(5), 993–998.

Vania, A., & Yolina, H. (2021). Analysis Inventory Cost Jona Shop with EOQ Model. Engineering, MAthematics and Computer Science (EMACS) Journal, 3(1), 21–25. https://doi.org/10.21512/emacsjournal.v3i1.6847