Dear Santosh

according your published paper as co-author, I am surprised that you didn 't  post a CORRECT question. Your question is too vague and obscure. In order to help you:

Please start GOOGLE SCHOLAR  and not GOOGLE and you will find a lot of hits concerning your question.

Your question is too vague and must be reformulated. P. e. do you mean  XRAY fluorescence method or UV-VIS fluorescence method .

What do you mean with physical uses.

What a kind of herbal plants?? are they the same as in your publications?

Please note that your are working with VERY LOW concentration of trace elements . If you chemicals are DIRTY (e.g. not pure enough) , you 'll see perhaps the fluorescence of your impurities besides the trace elements.

an abstract from google scholar:

1. Introduction

Traditionally, herbs are universally applied in popular and folk

medicine, and play an important role in the general state of health

in many populations. They are usually not biologically aggressive

and do not have severe side effects. The therapeutic activity of

herbs is associated with the content of biologically active organic

compounds of varying structures and remedial powers such as

alkaloids, tannins, oils, or vitamins. In addition to pharmacologically

active substances, there is a growing interest in their chemical

composition because of ongoing developments in nutrition and

biochemical surveying and mineral prospecting (Kalny, Fijałek,

Daszczuk, & Ostapczuk, 2007).

Raw plant materials are derived from sources subject to action

of natural biogeochemical environment and may be easily contaminated

with pesticides, microbial contaminants, heavy metals,

chemical toxins and adulterated with orthodox drugs during

growth and processing. Herbs constitute an important link in the

transfer of trace elements from soil to man. The level of essential

elements in plants varies, and content being affected by the geochemical

characteristics of a soil and by the ability of plants to

selectively accumulate some of these elements. Bioavailability of

the elements depends on the nature of their association with the

constituents of a soil. Plants readily assimilate elements through

the roots. Additional sources of elements for plants are rainfall,

atmospheric dusts, plant protection agents, and fertilizers that

can be absorbed through the leaf blades (Łozak, Sołtyk, Ostapczuk,

& Fijałek 2002). Therefore, it is important to use combined regimes

for studies on medicinal herbs and analysis. Due to the importance

of the mineral and trace elements present in herbs, several studies

have been carried out to determine their levels by using graphite

furnace atomic absorption spectrometry (GF-AAS) (Kalny et al.,

2007; Sołtyk & Fijałek, 2000), flame atomic absorption spectrometry

(F-AAS) (Abou-Arab & Abou Donia, 2000; Chizzola, Michitsch,

& Franz, 2003; Maiga, Diablo, Bye, & Paulsen, 2005), inductively

coupled plasma optical emission spectrometry (ICP-OES) (AL-Oud,

2003; Basgel & Erdemog˘lu, 2006; Malik, Szakova, Drabek, Balik, &

Kokoska, 2008), inductively coupled plasma-mass spectrometry

ICP-MS (Nookabkaew, Rangkadilok, & Satayavivad, 2006; Raman,

Patino, & Nair, 2004), INNA (Abugassa et al., 2008; Choudhury,

Acharya, Nair, Reddy, & Garg, 2008; Garg, Kumar, Nair, & Reddy,

2007; Hamzah, Beh, Sarmani, Liow, & Abugassa, 2004) or X-ray

fluorescence spectrometry (XRF) (Bumbálová, Komová, &

Dejmková, 1992; Harangozó, Tölgyessy, Tomecˇek, Ruzˇicˇka, &

Cejpek, 1999).

JRG

I agree with JR Grezes. The volume of trace elements and minerals also depends on the use of glyphosate, because it works as a chelating agent .

I am thinking that you want to know the significance of the trace elements present in the herbs in general,right?

Hi Santosh,

What do you mean by physical uses? Please clarify....but..........

if you want to know what is the significance of trace elemental composition in herbal medicines then some of these points are helpful:

1. Plants contain many inorganic constituents including heavy toxic metals. So, elemental analysis is useful for deciding the proper dose of herbal extract or formulation. Excessive consumption of these will cause some disorders in humans.

2. Also many of them are useful for formation of secondary compounds such as alkaloids, glycosides and others which are attributed for medicinal properties of these plants.

3. Elemental analysis is sometime useful for management of some kind of environmental contaminants or pollutants with phytoremediation technology. 

4. Elemental composition is also helpful to draw the information on plant metabolism as most of these are co-factor of variety of enzymes.

thank you sir