1. Review: Possible removal of heavy metal and selective rare-earth ions by polymeric and nano-composite materials/ Nguyen Duc Hieu, Chu Thi Xuan, Pham Duc Thanh, Mai Anh Tuan 2. Screening for the main triterpenic acids in Centella asiatica samples from North and South of Vietnam/ Vo Thi Quynh Nhu, Tran Thi Phuong Thao, Tran Van Sung, Tran Van Loc 3. Study on anticoưosion properties of epoxy primers on steel/ Huynh Le Huy Cuong, Tran Vinh Dieu, Nguyen Dac Thanh, Doan Thi Yen Oanh 4. Synthesis and electrochemical performance of Fe2(Mo04)3 cathode for sodium-ion batteries/ Nguyen Van Tu, Phan Quang Quy 5. Removal of Ni2+ from aqueous solution by adsorption onto maize tree-trunk polyaniline composite/ Pham Viet Tien, Mai Thi Thanh Thuy, Nguyen Thi Van Anh, Mai Thi Xuan, Pham Thi Tot, Le Cao The, Phan Thi Binh 6. Biflavones and megastigmane glycosides from the leaves of Antidesma bunius/ Do Thi Trang, Le Thi Huyen, Dan Thi Thuy Hang, Nguyen Xuan Nhiem, Pham Hai Yen, Bui Huu Tai, Hoang Le Tuan Anh, Chau Van Mình, Phan Van Kiem 7. The ICP-MS validated for measuring arsenic levels in muscle tissues of freshwater fishes in Ho Chi Minh City/ Nguyen Quoc Thang, Le Van Tan, Nguyen Thi Kim Phuong 8. Flavonoid glycosides from Viscum album/ Vu Kim Thu, Nguyen Kim Thoa, Phan Van Kiem 9. Interactions of formaldehyde and its substituted derivatives with HCN: Structure, stability and interaction/ Nguyen Ngoc Tri, Pham Thi Minh Tam, Nguyen Thi Hong Man, Ho Quoc Dai, Nguyen Phi Hung, Nguyen Tien Trung 10. Oxidation of styrene over molybdenum-containing hydrotalcite catalysts/ Nguyen Tien Thao, Dang Van Long 11. Synthesis and structural characteristics of platinum(II) complexes with N(4)-substituted thiosemicarbazones/ Duong Ba Vu, Tran Buu Dang 12. Chemical constituents of the fruits from Fissistigma oldhamii (Hemsl.) Merr. growing in Vietnam/ Vo Cong Dung, Nguyen Thi Quynh Giang, Tran Dinh Thang, Vu Dinh Hoang  13. Spectrometric elucidation of intermediates in asymmetric transfer hydrogenation of ketones atalyzed by complex of ruthenium (II) and isosorbide-based ligand/ Huynh Khanh Duy 14. Furanosesterterpenes from the marine sponge Ircinia echinata (Keller, 1889)/ Do Thi Trang, Duong Thi Dung, Nguyen Xuan Nhiem, Bui Huu Tai, Pham Hai Yen, Hoang Le Tuan Anh, Pham Hai Yen, Do Cong Thung, Chau Van Minh, Phan Van Kiem 15. Characterization of commercial natural rubber purified with transesterification/ Nghiem Thi Thương, Phan Trung Nghia, Seiichi Kawahara 16. Diterpenoids from the wood of Podocarpus neriifolitus/ Nguyen Hoang Sa, Nguyen Thanh Tam, Nguyen Thi Hoang Anh, Dao Duc Thien, Tran Duc Quan, Dinh Thi Phong, Le Quoc Thang, Tran Van Sung, Trinh Thi Thuy 17. Electrosynthesis of a poly(l,5-diaminonaphthalene) - polypyrrole nanowire bilaver for trichlorfon insecticide biosensing/ Nguyen Van Anh, Nguyen Le Huy, Do Phuc Quan, Vuong Thi Bich Hien, Nguyen Tuan Dung, Tran Dai Lam 18. Transformation of 2-(acetamido)-3-(4-chlorophenyl)acrylohydrazide into 1-arylideneamino- 4-(4-chlorobenzylidene)-2-methyl-l//-imidazolin-5(4//)-ones and 4-aryl-l-[2-(acetamido)-3- (4-chlorophenyl) acryloyl]thiosemicarbazides/ Nguyen Tien Cong, Truong Ngoc Anh Luan 19. A comparison for donor-acceptor interactions between E(PH3)2 and NHEMe ligands (E = c to Pb) of W(CO)5 complexes using energy decomposition analysis method with natural orbitais for chemical valence theory/ Huynh Thi Phuong Loan, Le Thi Hoa, Duong Tuan Quang, Tran Duc Sy, Dang Tan Hiep, Pham Van Tat, Nguyen Thi Ai Nhung 20. Development of spectrophotometric method for determination of mesalazine in pharmaceutical preparation/ Nguyen Trung Dung, Nguyen Thi Lan Anh, Dong Thi Oanh, Nguyen Hoang Dung 21. Crystallography: Deep understanding the mechanism of P-form nucleation in cooling crystallization of L-glutamic acid/ Dang Truong Giang, Khuu Chau Quang, Trinh Thì Thanh Huyen, Nguyen Anh Tuan 22. Investigation of cure and mechanical properties of deproteined natural rubber-g-poly(methyl methacrylate)/ Nguyen Thi Nhan, Tran Anh Dung, Pham Duy Khanh, Nghiem Thi Thuong, Nguyen Huy Tung, Phan Trung Nghia, Tran Thi Thuy 23. Study on chemical constituents of the lichen Parmotrema sancti-angelii (Lynge) Hale. (Parmeliaceae)/ Nguyen Thi Thu Tram, Nguyen Trong Tuan, Nguyen Phuc Dam, Nguyen Thi Ngoc Van, Nguyen Pham Hong Thanh