Isesengura rya LCMS: Gukurikirana Phthalates mu Baijiu y'Abashinwa

Mu myaka ya vuba aha, ubwandu bwa phthalate muri Baijiu y'Abashinwa (inzoga zo mu Bushinwa) bwakunze gukurura abantu nk'ikibazo cy'umutekano w'ibiribwa. Ibi bintu by'imiti, bishobora kwinjira mu nzoga, bishobora guteza ingaruka ku buzima bw'abantu. Mu buryo butandukanye bwo gusesengura, Liquid Chromatography-Mass Spectrometry (LCMS) yagaragaye nk'igikoresho cy'ingenzi cyo gukurikirana phthalate muri Baijiu y'Abashinwa, bitewe n'uburyo ikora neza kandi ikaba ifite ubushobozi bwo kuyipima.

Phthalates: Inyongera zidakenewe mu gishinwa cya Baijiu?

Phthalate, cyangwa esters za aside phthalic (PAEs), zikunze gukoreshwa nk'imashini zikora pulasitiki. Mu Baijiu yo mu Bushinwa, zishobora kuba zikomoka kuri:

1. Kwimuka uvuye ku bikoresho bya pulasitiki bipfunyika;
2. Gukora ku miyoboro ya pulasitiki cyangwa ibikoresho byayo mu gihe cyo gukora;
3. Kwanduza ibidukikije kw'ibintu bikoreshwa mu guhumanya ibidukikije;

Nubwo gukoresha ibikoresho bya pulasitiki mu buryo butaziguye mu gace k’Abashinwa ka Baijiu bibujijwe n’amategeko y’igihugu, kwimuka kw’uturemangingo duto biracyari ikibazo. Kurya phthalate nyinshi igihe kirekire bishobora guhungabanya sisitemu y’imisemburo, bikaba byagira ingaruka ku mikurire y’umwana no ku buzima bw’imyororokere.

LCMS: Umushakashatsi w'ibinyabutabire bya Phthalates?

Isesengura ry’ibinyabutabire mu buryo bwa Liquid Chromatography-Mass Spectrometry (LCMS) rihuza ubushobozi bwo gutandukanya ibinyabutabire mu buryo bwa Liquid Chromatography n’ubushobozi bwo gutandukanya ibinyabutabire mu buryo bwa mass spectrometry, bigatuma biba byiza cyane mu gusesengura ibinyabutabire mu bice bikomeye nka Baijiu yo mu Bushinwa. Ibyiza by’ingenzi birimo:

• Ubushobozi bwo kwiyumva cyane: Kumenya ku gipimo cya ng/mL cyangwa kiri hasi;
• Guhitamo cyane: Kumenya neza no gupima phthalate nyinshi;
• Ubushobozi bwo hejuru: Gusesengura icyarimwe intego nyinshi mu inshinge imwe;
• Ubushobozi bukomeye bwo kurwanya ingaruka mbi: Igabanya neza ingaruka za matrix zituruka kuri Baijiu yo mu Bushinwa;

Imikorere ya LCMS yo Gupima Phthalate mu Baijiu y'Abashinwa?

1. Icyitegererezo cyo gutegura?

·Gutera cyangwa gutera inshinge mu buryo butaziguye (ku bipimo bifite ubukana buke);

·Ubushyuhe bwa azote bugabanuka n'ihererekanya ry'ibintu biyungurura;

1. Gutandukanya Chromatography y'amazi?

Hakoreshejwe inkingi ya C18 reverse phase chromatography irimo methanol/amazi cyangwa acetonitrile/amazi nk'igice cyo kugenda, gradient elution ikoreshwa mu gutandukanya plasticizers zitandukanye. Intego zisanzwe zo gutahura zirimo:

·Dimethyl phthalate (DMP)

·Diethyl phthalate (DEP)

·Dibutyl phthalate (DBP)

·Di (2-ethylhexyl) phthalate (DEHP)

1. Gupima Ubunini bwa Spectrometry?

Gupima mu buryo bwa ion mbi ukoresheje amashanyarazi akoresha ion source (ESI) cyangwa ikirere gikoresha ionization source (APCI). Spektrometero y'uburemere yongera ubushobozi bwo gutoranya no kumenya uburyo bwo gutahura hakoreshejwe uburyo bwo kugenzura ibikorwa byinshi (MRM).

Kwemeza Uburyo n'Igenzura ry'Ubuziranenge?

Uburyo bwizewe bwa LCMS busaba kwemeza neza:

• Intera y'umurongo: Itwikira ibipimo byitezwe hamwe na R² > 0.99 ；
• Aho bigarukira mu kumenyekana/gupima: Ubusanzwe ku rugero rwa sub-μg/L, hubahirizwa amahame ngenderwaho;
• Ubunyangamugayo n'ubunyangamugayo: Igipimo cyo kugarura ingano ya 85–115%, itandukaniro risanzwe <15% ；
• Ubwinshi: Igenzura ko impera z'intego nta kintu na kimwe kibangamira;

Ibisubizo by'inganda n'ubuyobozi bw'abaguzi?

Bitewe n'iterambere mu ikoranabuhanga ryo kuvumbura no gushyiraho amategeko akaze, inganda zo mu Bushinwa za Baijiu zashyizeho ingamba zo kugabanya ibyago bya ftalate:

1. Kugenzura isoko: Gukuraho buhoro buhoro ibice bya pulasitiki mu ikorwa ；
2. Imicungire y'ibikorwa: Gukurikirana no kugenzura ibikoresho fatizo;
3. Gupima umusaruro wa nyuma: Sisitemu zikomeye zo kugenzura ubuziranenge ；

Nk'abaguzi, dushobora gukora ibi bikurikira:

• Kugura ku birango byemewe ukoresheje inzira zemewe;
• Reba neza uko ibintu bipakiye kandi wirinde ko ibicuruzwa byangiritse;
• Bika neza, wirinde ubushyuhe bwinshi no kubikwa igihe kirekire;

Ibitekerezo by'ejo hazaza?

LCMS izakomeza kugira uruhare runini mu gupima phthalate muri Baijiu yo mu Bushinwa. Gukomeza kunoza uburyo bwo gukoresha ibikoresho no kunoza uburyo bizafasha mu gusesengura byihuse kandi neza. Guteza imbere uburyo bwo gusuzuma ibintu byinshi bizarushaho kwemeza ko ari byiza kandi ko umutekano ari wose.

Do you have questions about Chinese Baijiu testing? We welcome discussions via email at international@bfrl.com.cn.