Wikipedia

Likens-Nickerson Ngwaọrụ

Ngwaọrụ Likens-Nickerson bụ iberibe ugegbe nke ụlọ nyocha nkè Sam T. Likens na Gail B. Nickerson chepụtara maka nchọpụta nkè ihe ndị mejupụtara mmanụ hop n'afọ 1964. [1]Ngwaọrụ ahụ na-arụ ọrụ n'otu ógè na-agbanye Mmiri na-esi ísì ụtọ. A na-ejikarị ugegbe borosilicate rụọ ngwá ọrụ ahụ na mkpịsị aka oyi na karama na-esi ísì ụtọ nke nwéré nkwonkwo ugegbe. A na-ejikarị ya eme ihe iji kewapụ ihe ndị dị n'ime ala màkà nyocha dị ukwuu na ma ọ bụ nke dị mma site na iji kemịkalụ ngwá ọrụ. Otú [2] dị, a pụkwara iji ya kewapụ ihe ndị a na-achọ site na mmiri dị ka ụzọ isi weghachite ihe bará uru.

Nkọwa na ọrụ dezie

 
Ngwaọrụ Likens-Nickerson nwere PTFE stopcock na mmiri-jacket condenser na mgbakwunye na mkpịsị aka oyi. A na-etinye karama na-esi ísì ụtọ nke nwere nkwonkwo iko n'akụkụ ọ bụla nke ngwaọrụ ahụ na clips Keck.

Ngwaọrụ Likens-Nickerson a na-adịghị ahụkebe na-eji karama abụọ na-esi ísì. A na-etinye otu karama mmiri nke nwéré ihe (s) a chọrọ na nke ọzọ nwere ihe na-agbanye mmiri. A na-ekwe ka karama ọ bụla ruo ébé ha na-esi ísì ụtọ wee zipụ anwụrụ ha (ma ọ bụ mmanụ ikuku) n'akụkụ aka nke ngwaọrụ ahụ na etiti mkpịsị áká oyi ébé ha na'ime emulsify, condensed, ma daba n'ọnyà nkewa nke nwéré ike ma ọ bụ na ọ gaghị enwe stopcock. Enwere ike ịhazi ogwe aka nke ọnyà na-eduga n'ụzọ ikuku mbụ n'ụzọ ga-eme ka ọ laghachi ma ọ bụ mmiri ma ọ bụ ihe ndị dị ndụ na flask ya.

Akụkọ ihe mere eme dezie

K[3] e mepụtara ya n'afọ 1964 ọtụtụ narị ndị na-eme nchọpụta anabatala, gbanwee, ma jiri ya mee ihe maka ebumnuche nke nyochaa ihe niile site na mmiri ara kamel na-agbanye ruo turbot. [4] [5] Ikekwe mgb[6] a ma ama nke ngwaọrụ Likens-Nickerson bụ ngwaọrụ Godefroot et al. kọwara n'afọ 1981. [1] [7] [8] dị, ndị na-eme nchọpụta ewuola ma jiri ọtụtụ ọdịiche na-enye ohere ka ngwaọrụ ahụ rụọ ọrụ n'okpuru ikuku, jupụta na gas inert, ma ọ bụ na-arụ ọrụ mgbè niile. [1] [2] Ma ha niile kwenyere na ngwaọrụ Likens-Nickerson mere ka ha màrà atụmatụ ha.

Edensibia dezie

  1. ↑ Likens (1964). "Detection of Certain Hop Oil Constituents in Brewing Products" (in en). Proceedings. Annual Meeting - American Society of Brewing Chemists 22 (1): 5–13. DOI:10.1080/00960845.1964.12006730. ISSN 0096-0845. 
  2. ↑ Eikani (2004). "Recovery of water-soluble constituents of rose oil using simultaneous distillation-extraction" (in en). Flavour and Fragrance Journal 20 (6): 555–558. DOI:10.1002/ffj.1482. ISSN 0882-5734. 
  3. ↑ Prost (1998-08-17). "Identification of the Most Potent Odorants in Wild and Farmed Cooked Turbot (Scophtalamus maximus L.)". Journal of Agricultural and Food Chemistry 46 (8): 3214–3219. DOI:10.1021/jf980128o. ISSN 0021-8561. 
  4. ↑ Google Scholar. scholar.google.com. Retrieved on 2021-08-05.
  5. ↑ Ning (2011-12-01). "Identification of volatile components in Chinese Sinkiang fermented camel milk using SAFE, SDE, and HS-SPME-GC/MS" (in en). Food Chemistry 129 (3): 1242–1252. DOI:10.1016/j.foodchem.2011.03.115. ISSN 0308-8146. PMID 25212363. 
  6. ↑ Godefroot (1981-01-09). "New method for quantitative essential oil analysis" (in en). Journal of Chromatography A 203: 325–335. DOI:10.1016/S0021-9673(00)80304-0. ISSN 0021-9673. 
  7. ↑ Cachet (2015). "IOFI guidelines for the isolation of flavouring substances by simultaneous distillation-extraction" (in en). Flavour and Fragrance Journal 30 (1): 2–4. DOI:10.1002/ffj.3226. ISSN 1099-1026. 
  8. ↑ Pollien (1997-08-01). "Simultaneous Distillation−Extraction: Theoretical Model and Development of a Preparative Unit". Analytical Chemistry 69 (16): 3285–3292. DOI:10.1021/ac9701905. ISSN 0003-2700. 

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